Free Mathematics Books

Here is an unordered list of online mathematics books, textbooks, monographs, lecture notes, and other mathematics related documents freely available on the web. I tried to select only the works in book formats, "real" books that are mainly in PDF format, so many well-known html-based mathematics web pages and online tutorials are left out. Click here if you prefer a categorized directory of mathematics books. The list is updated on a daily basis, so, if you want to bookmark this page, use one of the buttons below.

1. Linear Algebra Done Wrong
   Sergei Treil | , Published in 2004, 222 pages
2. Lectures on Sieve Methods
   H.E. Richert | Tata Institute of Fundamental Research, Published in 1976, 216 pages
3. A Gentle Introduction to Category Theory: the calculational approach
   Maarten M. Fokkinga | University of Twente, Published in 1994, 80 pages
4. Lie groups and Lie algebras
   N. Reshetikhin, V. Serganova, R. Borcherds | UC Berkeley, Published in 2006, 179 pages
5. Elementary Linear Algebra
   Keith Matthews | University of Queensland, Published in 1998, 302 pages
6. Riemannian Submanifolds: A Survey
   Bang-Yen Chen | arXiv, Published in 2013, 272 pages
7. Engineering Mathematics: YouTube Workbook
   Christopher C. Tisdell | BookBoon, Published in 2012, 114 pages
8. Advanced High-School Mathematics
   David B. Surowski | Kansas State University, Published in 2011, 435 pages
9. Numerical Methods For Time Dependent Equations
   P. Lascaux | Tata Institute of Fundamental Research, Published in 1976, 162 pages
10. New Perspectives in Algebraic Combinatorics
    Louis J. Billera, at al. | Cambridge University Press, Published in 1999, 345 pages
11. Partial Differential Equations for Finance
    Robert V. Kohn | New York University, Published in 2003, 121 pages
12. Computational Mathematics for Differential Equations
    N. V. Kopchenova, I. A. Maron | , Published in 1975
13. Ricci Flow and the Poincare Conjecture
    John Morgan, Gang Tian | American Mathematical Society, Published in 2007, 493 pages
14. Geometric Topology: Localization, Periodicity and Galois Symmetry
    Dennis Sullivan | Springer, Published in 2005, 296 pages
15. Algebraic Geometry
    J.S. Milne | , Published in 2008, 241 pages
16. Algebraic Problems and Exercises for High School
    I. Goian, R. Grigor, V. Marin, F. Smarandache | The Educational Publisher, Published in 2015, 146 pages
17. Algebraic Tools for Modal Logic
    Mai Gehrke, Yde Venema | ESSLLI, Published in 2001, 109 pages
18. Deformations of Algebras in Noncommutative Geometry
    Travis Schedler | arXiv, Published in 2015, 120 pages
19. Ample Subvarieties of Algebraic Varieties
    Robin Hartshorne | Springer, Published in 1970, 273 pages
20. Mathematical Illustrations: A Manual of Geometry and PostScript
    Bill Casselman | Cambridge University Press, Published in 2005, 336 pages
21. Engineering Statistics Handbook
    | NIST/SEMATECH, Published in 2003
22. Linear Algebra for Informatics
    José Figueroa-O'Farrill | The University of Edinburgh, Published in 2005, 69 pages
23. Everything Maths: Grade 12 Mathematics
    Neels van der Westhuizen, et al. | Siyavula, Published in 2012, 199 pages
24. Representations of Reductive p-adic Groups
    Fiona Murnaghan | University of Toronto, Published in 2009, 128 pages
25. Fractional Calculus: Theory and Applications
    Francesco Mainardi (ed.) | MDPI AG, Published in 2018, 210 pages
26. Matrix Analysis
    Steven J Cox | Rice University, Published in 2012, 98 pages
27. Plane Trigonometry and Numerical Computation
    J.W. Young, F.M. Morgan | The Macmillan Company, Published in 1919, 146 pages
28. Elementary Algebra
    John Redden | The Saylor Foundation, Published in 2011, 1334 pages
29. Engineering Statistics and Quality Control
    Irving W. Burr | McGraw-Hill, Published in 1953
30. Model Categories and Simplicial Methods
    Paul Goerss, Kristen Schemmerhorn | Northwestern University, Published in 2004, 46 pages
31. Introduction to Differential Equations
    Jeffrey R. Chasnov | The Hong Kong University of Science &Technology, Published in 2010, 126 pages
32. Plane and Spherical Trigonometry in three parts
    Henry Bedingfield Goodwin | Longmans, Green, and Co., Published in 1907, 296 pages
33. Math That Makes You Go Wow
    M. Boittin, E. Callahan, D. Goldberg, J. Remes | Ohio State University, Published in 1998
34. The Numerical Approximation of Functional Differential Equations
    Daniele Venturi | arXiv, Published in 2016, 113 pages
35. An Introduction to the Algebra of Quantics
    E.B. Elliott | The Clarendon Press, Published in 1913, 444 pages
36. Mathematical Methods for Physical Sciences II
    Christoph Kirsch | University of North Carolina, Published in 2011, 209 pages
37. Symplectic Reflection Algebras
    Gwyn Bellamy | arXiv, Published in 2012, 64 pages
38. Manifolds: Current Research Areas
    Paul Bracken (ed.) | InTech, Published in 2017, 158 pages
39. An Introduction to K-theory and Cyclic Cohomology
    Jacek Brodzki | arXiv, Published in 1996, 115 pages
40. Street-Fighting Mathematics
    Sanjoy Mahajan | The MIT Press, Published in 2010, 153 pages
41. Neutral and Non-Euclidean Geometries
    David C. Royster | UNC Charlotte, Published in 2000, 145 pages
42. Linear Algebra
    W W L Chen | Macquarie University, Published in 2008, 221 pages
43. Smooth Numbers: Computational Number Theory and Beyond
    Andrew Granville | Universite de Montreal, Published in 2008, 58 pages
44. Mathematics, Basic Math and Algebra
    | Naval Education and Training, Published in 2003, 296 pages
45. Nonlinear Functional Analysis
    Gerald Teschl | University of Vienna, Published in 2009, 74 pages
46. Optimization Algorithms: Methods and Applications
    Ozgur Baskan (ed.) | InTech, Published in 2016, 322 pages
47. Combinatorial Optimization: Exact and Approximate Algorithms
    Luca Trevisan | Stanford University, Published in 2011, 139 pages
48. Probability, Statistics and Stochastic Processes
    Cosma Rohilla Shalizi | , Published in 2001, 71 pages
49. Symbolic Logic
    Lewis Carroll | Macmillan and co, Published in 1897
50. The Algebra of Invariants
    J.H. Grace, A. Young | Cambridge, University Press, Published in 1903, 404 pages
51. Numerical Solutions of Engineering Problems
    K. Nandakumar | University of Alberta, Published in 1998, 193 pages
52. Hyperbolic Geometry
    J.W. Cannon, W.J. Floyd, R. Kenyon, W.R. Parry | MSRI, Published in 1997, 57 pages
53. Mathematics and Physical Science in Classical Antiquity
    J. L. Heiberg | Oxford University Press, Published in 1922, 115 pages
54. Analysis on Homogeneous Spaces
    Ralph Howard | Royal Institute of Technology Stockholm, Published in 1994, 108 pages
55. Harmonic Analysis
    Russell Brown | University of Kentucky, Published in 2009, 191 pages
56. Calculus Concentrate
    Russell A. Gordon | Whitman College, Published in 2006, 182 pages
57. Introduction to Probability
    C. M. Grinstead, J. L. Snell | American Mathematical Society, Published in 1997, 520 pages
58. Banach Spaces of Analytic Functions
    enneth Hoffman | Prentice-Hall, Published in 1962, 242 pages
59. Heegner Points and Rankin L-Series
    Henri Darmon, Shou-Wu Zhang | Cambridge University Press, Published in 2004, 382 pages
60. Intuitionistic Logic
    Nick Bezhanishvili, Dick de Jongh | Universiteit van Amsterdam, Published in 2010, 57 pages
61. Rotations of Vectors Via Geometric Algebra
    James A. Smith | viXra, Published in 2016, 76 pages
62. Introduction to Vectors and Tensors Volume 1: Linear and Multilinear Algebra
    Ray M. Bowen, C.-C.Wang | Springer, Published in 2008, 314 pages
63. First Year Mathematics
    George W. Evans, John A. Marsh | Charles E. Merrill company, Published in 1916, 268 pages
64. Functional Analysis
    Gerald Teschl | University of Vienna, Published in 2009, 142 pages
65. The Geometry and Topology of Three-Manifolds
    William P Thurston | Mathematical Sciences Research Institute, Published in 2002, 502 pages
66. Opera Magistris
    Vincent Isoz | Sciences.ch, Published in 2016, 5273 pages
67. Harmonic Analysis
    S.R.S. Varadhan | New York University, Published in 2019, 82 pages
68. A First Course in Complex Analysis
    M. Beck, G. Marchesi, D. Pixton | San Francisco State University, Published in 2012, 215 pages
69. An Introduction to Nonassociative Algebras
    Richard D. Schafer | Project Gutenberg, Published in 2008, 81 pages
70. Mathematical Philosophy: A Study of Fate and Freedom
    Cassius Jackson Keyser | E.P. Dutton & company, Published in 1922, 490 pages
71. Probability, Random Processes, and Ergodic Properties
    Robert M. Gray | Springer, Published in 2008, 217 pages
72. Lecture Notes on Graph Theory
    Tero Harju | University of Turku, Published in 2011, 100 pages
73. Complex Analysis on Riemann Surfaces
    Curtis McMullen | Harvard University, Published in 2005, 89 pages
74. Stochastic Analysis - Notes
    I. F. Wilde | , Published in 2009, 103 pages
75. Hilbert Space Methods for Partial Differential Equations
    R. E. Showalter | Pitman, Published in 1994, 208 pages
76. Elementary Topology
    O. Ya. Viro, O. A. Ivanov, N. Yu. Netsvetaev, V. M. Kharlamov | American Mathematical Society, Published in 2008, 400 pages
77. Mathematics for Computer Science
    Eric Lehman, F Thomson Leighton, Albert R Meyer | MIT, Published in 2010, 557 pages
78. An Elementary Treatise on Conic Sections
    Charles Smith | The Macmillan Company, Published in 1905, 378 pages
79. Statistical Treatment of Experimental Data
    Hugh D. Young | McGraw Hill, Published in 1962
80. Lectures on The Finite Element Method
    Ph. Ciarlet | Tata Institute of Fundamental Research, Published in 1975, 145 pages
81. Geometry of Four Dimensions
    Parker Manning Henry | The MacMillan Company, Published in 1914, 378 pages
82. Introduction to Twisted Commutative Algebras
    Steven V Sam, Andrew Snowden | arXiv, Published in 2012, 56 pages
83. Elementary Computer Mathematics
    Kenneth R. Koehler | University of Cincinnati Blue Ash College, Published in 2002, 223 pages
84. Introduction to Real Analysis
    Lee Larson | University of Louisville, Published in 2014, 184 pages
85. Analytical Geometry for Beginners
    Alfred Baker | W. J. Gage, Published in 1905, 234 pages
86. Notes on Fermionic Fock Space for Number Theorists
    Greg W. Anderson | The University of Arizona, Published in 2000, 99 pages
87. Multivariable Calculus
    George Cain, James Herod | , Published in 1997
88. A First Course of Partial Differential Equations in Physical Sciences and Engineering
    Marcel B. Finan | Arkansas Tech University, Published in 2009, 285 pages
89. Modern Algebraic Topology
    D. G. Bourgin | Macmillan, Published in 1963, 544 pages
90. A Modern Course on Curves and Surfaces
    Richard S. Palais | virtualmathmuseum.org, Published in 2003, 163 pages
91. Existence, multiplicity, perturbation, and concentration results for a class of quasi-linear elliptic problems
    Marco Squassina | Electronic Journal of Differential Equations, Published in 2006, 213 pages
92. Synchronization and Linearity: An Algebra for Discrete Event Systems
    F. Baccelli, G. Cohen, G. J. Olsder, J. Quadrat | John Wiley & Sons, Published in 1993, 501 pages
93. Mathematical Biology
    Jeffrey R. Chasnov | The Hong Kong University of Science & Technology, Published in 2010, 115 pages
94. Euclid's 'Elements' Redux
    Daniel Callahan | starrhorse.com, Published in 2014, 359 pages
95. Higher Algebra
    Jacob Lurie | Harvard University, Published in 2017, 1166 pages
96. Model Theory
    Stephen G. Simpson | The Pennsylvania State University, Published in 1998, 127 pages
97. Langlands Correspondence for Loop Groups
    Edward Frenkel | Cambridge University Press, Published in 2007, 393 pages
98. The Handbook of Essential Mathematics
    John C. Sparks | Air Force Publication, Published in 2006, 205 pages
99. Notes on Operator Algebras
    G. Jungman | Los Alamos National Laboratory, Published in 1999, 60 pages
100. Linear Algebra Examples C-1: Linear equations, matrices and determinants
     Leif Mejlbro | BookBoon, Published in 2009, 113 pages
101. Basic Concepts in Modal Logic
     Edward N. Zalta | Stanford University, Published in 2011, 91 pages
102. Group theory for Maths, Physics and Chemistry
     Arjeh Cohen, Rosane Ushirobira, Jan Draisma | , Published in 2007, 93 pages
103. Galois Theory: Lectures Delivered at the University of Notre Dame
     Emil Artin | University of Notre Dame, Published in 1971, 96 pages
104. Linear Algebra
     David Cherney, Tom Denton, Andrew Waldron | UC Davis, Published in 2013, 410 pages
105. Iterative Methods for Optimization
     C.T. Kelley | Society for Industrial Mathematics, Published in 1987, 188 pages
106. Vector Analysis and the Theory of Relativity
     Francis Dominic Murnaghan | Johns Hopkins press, Published in 1922, 156 pages
107. n-Linear Algebra of Type I and Its Applications
     W. B. V. Kandasamy, F. Smarandache | InfoLearnQuest, Published in 2008, 120 pages
108. Euclid's Elements of Geometry
     J.L. Heiberg, R. Fitzpatrick | , Published in 2008, 545 pages
109. Topics in topology: The signature theorem and some of its applications
     Liviu I. Nicolaescu | University of Notre Dame, Published in 2008, 159 pages
110. Lectures On Old And New Results On Algebraic Curves
     P. Samuel | Tata Institute Of Fundamental Research, Published in 1966, 99 pages
111. The Millennium Prize Problems
     J. Carlson, A. Jaffe, A. Wiles | American Mathematical Society, Published in 2006, 139 pages
112. Yet Another Calculus Text
     Dan Sloughter | , Published in 2007, 147 pages
113. Higher Elementary Geometry
     Venugopal | , Published in 1958, 135 pages
114. Lectures on Optimization: Theory and Algorithms
     John Cea | Tata Institute of Fundamental Research, Published in 1978, 237 pages
115. Natural Operations in Differential Geometry
     Ivan Kolar, Peter W. Michor, Jan Slovak | Springer, Published in 1993, 437 pages
116. Group Theory
     Ferdi Aryasetiawan | University of Lund, Published in 1997, 140 pages
117. Essential Mathematics
     Franco Vivaldi | , Published in 2006, 74 pages
118. Topology
     Curtis T. McMullen | Harvard University, Published in 2013, 90 pages
119. Lectures on Topics In The Theory of Infinite Groups
     B.H. Neumann | Tata Institute of Fundamental Research, Published in 1960, 200 pages
120. Topics in Differential Geometry
     Peter W. Michor | American Mathematical Society, Published in 2008, 429 pages
121. Complex Integration and Cauchy's Theorem
     G. N. Watson | Cambridge University Press, Published in 1914, 100 pages
122. Flavors of Geometry
     Silvio Levy | Cambridge University Press, Published in 1997, 208 pages
123. Recreational Mathematics
     | Wikipedia, Published in 2014
124. Applied Analysis
     J. Hunter, B. Nachtergaele | World Scientific Publishing Company, Published in 2005, 439 pages
125. Contact Geometry
     Hansjoerg Geiges | arXiv, Published in 2004, 86 pages
126. A Primer of Mathematical Writing
     Steven G. Krantz | arXiv.org, Published in 2016, 276 pages
127. Practical Mathematics
     A.H. Bell | Blackie And Son Limited, Published in 1919, 356 pages
128. Category Theory Lecture Notes
     Michael Barr, Charles Wells | , Published in 1999, 133 pages
129. Riemannian Geometry: Definitions, Pictures, and Results
     Adam Marsh | arXiv, Published in 2014, 69 pages
130. Sets, Groups and Knots
     Curtis T. McMullen | Harvard University, Published in 2008, 56 pages
131. Elementary Mathematics
     W W L Chen, X T Duong | Macquarie University, Published in 1999, 308 pages
132. The Air Force Brain Booster Book
     John C. Sparks | Air Force Publication, Published in 2006, 58 pages
133. Lectures in Basic Computational Numerical Analysis
     James M. McDonough | University of Kentucky, Published in 2001, 166 pages
134. Calculus with Analytic Geometry
     Richard H. Crowell, William E. Slesnick | W W Norton & Co Inc, Published in 2008, 662 pages
135. Lecture Notes in Discrete Mathematics
     Marcel B. Finan | Arkansas Tech University, Published in 2001, 224 pages
136. Linearization via the Lie Derivative
     Carmen Chicone, Richard Swanson | American Mathematical Society, Published in 2000, 64 pages
137. Differential Equations
     Paul Dawkins | Lamar University, Published in 2011, 504 pages
138. Entropy of Compact Group Automorphisms
     Thomas Ward | University of East Anglia, Published in 2001, 84 pages
139. Introduction to Linear Bialgebra
     W.B.V. Kandasamy, F. Smarandache, K. Ilanthenral | arXiv, Published in 2005, 238 pages
140. Lectures on Logarithmic Algebraic Geometry
     Arthur Ogus | University of California, Berkeley, Published in 2006, 255 pages
141. Lists, Decisions, and Graphs
     Edward A. Bender, S. Gill Williamson | University of California, San Diego, Published in 2010, 261 pages
142. Riemannian Geometry
     Ilkka Holopainen, Tuomas Sahlsten | , Published in 2013, 102 pages
143. Introduction to the Basics of Heegaard Floer Homology
     Bijan Sahamie | arXiv, Published in 2010, 71 pages
144. An Introduction to Determinants
     William Thomson | , Published in 1882, 122 pages
145. Examples of differential equations, with rules for their solution
     George A. Osborne | Boston, Ginn & Company, Published in 1899, 76 pages
146. Chance and Luck
     Richard A. Proctor | Longmans, Green, and Co., Published in 1887, 164 pages
147. A Practical Arithmetic
     Frank Lincoln Stevens | C. Scribner's sons, Published in 1910, 404 pages
148. College Trigonometry
     Carl Stitz, Jeff Zeager | Stitz Zeager Open Source Mathematics, Published in 2013, 398 pages
149. Complex and Adaptive Dynamical Systems: A Primer
     Claudius Gros | arXiv, Published in 2008, 276 pages
150. Analytic Number Theory
     Giuseppe Rauti | viXra, Published in 2013, 96 pages
151. A Course in Combinatorial Optimization
     Alexander Schrijver | University of Amsterdam, Published in 2012, 221 pages
152. Elementary Abstract Algebra
     W. Edwin Clark | University of South Florida, Published in 2001, 105 pages
153. Probability on Trees and Networks
     Russell Lyons, Yuval Peres | Cambridge University Press, Published in 2016, 716 pages
154. Calculus and Linear Algebra. Vol. 2
     Wilfred Kaplan, Donald J. Lewis | University of Michigan Library, Published in 2007, 606 pages
155. The Foundations of Analysis
     Larry Clifton | arXiv, Published in 2013, 48 pages
156. forall x: An Introduction to Formal Logic
     P.D. Magnus | , Published in 2008, 160 pages
157. One Variable Advanced Calculus
     Kenneth Kuttler | Brigham Young University, Published in 2020, 394 pages
158. Statistics Done Wrong
     Alex Reinhart | refsmmat.com, Published in 2013, 437 pages
159. Engineering Mathematics with Tables
     M.A. Keasey, G.A. Kline, D.A. McIlhatten | The Blakiston company, Published in 1940, 376 pages
160. Representation Theory of Compact Groups
     Michael Ruzhansky, Ville Turunen | Aalto TKK, Published in 2008, 135 pages
161. A Course Of Mathematical Analysis
     Shanti Narayan | S.Chand And Company, Published in 1962, 494 pages
162. Linear Optimisation and Numerical Analysis
     Ian Craw | University of Aberdeen, Published in 2002, 151 pages
163. Lectures on Linear Algebra and Matrices
     G. Donald Allen | Texas A&M University, Published in 2003, 238 pages
164. Algebra: Abstract and Concrete
     Frederick M. Goodman | Semisimple Press, Published in 2015, 587 pages
165. Elementary Number Theory: Primes, Congruences, and Secrets
     William Stein | Springer, Published in 2004, 166 pages
166. A Summary of Calculus
     Karl Heinz Dovermann | University of Hawaii, Published in 2003, 164 pages
167. Complex Variables: Second Edition
     R. B. Ash, W. P. Novinger | Dover Publications, Published in 2007, 224 pages
168. Robust Optimization
     A. Ben-Tal, L. El Ghaoui, A. Nemirovski | Princeton University Press, Published in 2009, 564 pages
169. Introduction to Complex Analysis
     W W L Chen | Macquarie University, Published in 2003, 194 pages
170. Metrics on the Phase Space and Non-Selfadjoint Pseudo-Differential Operators
     Nicolas Lerner | Birkhäuser, Published in 2009
171. Computations in Algebraic Geometry with Macaulay 2
     D. Eisenbud, D. Grayson, M. Stillman, B. Sturmfels | Springer, Published in 2001, 343 pages
172. A set of new Smarandache functions, sequences and conjectures in number theory
     Felice Russo | American Research Press, Published in 2000, 114 pages
173. Numerical Recipes in Fortran 90
     William H. Press, at al. | Cambridge University Press, Published in 1996, 500 pages
174. Projective Differential Geometry Of Curves And Surfaces
     Ernest Preston Lane | The University Of Chicago Press, Published in 1932, 344 pages
175. An Introduction to Quantum Chaos
     Mason A. Porter | arXiv, Published in 2001, 57 pages
176. Lectures on Topics in Mean Periodic Functions and the Two-Radius Theorem
     J. Delsarte | Tata Institute of Fundamental Research, Published in 1961, 151 pages
177. An Inquiry-Based Introduction to Proofs
     Jim Hefferon | Saint Michael's College, Published in 2013, 23 pages
178. Introduction to Graphs
     | Wikipedia, Published in 2014
179. Fundamentals of Model Theory
     William Weiss, Cherie D'Mello | University of Toronto, Published in 1997, 64 pages
180. Finite Rank Torsion Free Modules Over Dedekind Domains
     E. Lee Lady | University of Hawaii, Published in 1998
181. College Algebra
     Carl Stitz, Jeff Zeager | , Published in 2013, 716 pages
182. Modular Functions and Modular Forms
     J. S. Milne | , Published in 2009, 129 pages
183. Partial Differential Equations
     Erich Miersemann | Leipzig University, Published in 2012, 205 pages
184. Iterative Methods in Combinatorial Optimization
     Lap Chi Lau, R. Ravi, M. Singh | Cambridge University Press, Published in 2011, 229 pages
185. Ordinary Differential Equations: A Systems Approach
     Bruce P. Conrad | , Published in 2010, 1125 pages
186. Noncompact Harmonic Manifolds
     Gerhard Knieper, Norbert Peyerimhoff | arXiv, Published in 2013, 84 pages
187. Logic for Computer Science
     | Wikibooks, Published in 2010
188. Statistics, Probability, and Game Theory: papers in honor of David Blackwell
     David Blackwell, at al. | IMS, Published in 1996, 407 pages
189. Abstract Algebra I
     Marcel B. Finan | Arkansas Tech University, Published in 2004
190. Statistics Beyond the Absolute Basics
     Ivan Lowe | scientificlanguage.com, Published in 2018, 182 pages
191. New Directions in Hopf Algebras
     S. Montgomery, H. Schneider | Cambridge University Press, Published in 2002, 485 pages
192. An Introductory Single Variable Real Analysis
     Marcel B. Finan | Arkansas Tech University, Published in 2009, 179 pages
193. A Minimum of Stochastics for Scientists
     Noel Corngold | Caltech, Published in 2009, 77 pages
194. Engineering Mathematics 1
     Ian Craw, Stuart Dagger, John Pulham | , Published in 2003, 187 pages
195. Seven Sketches in Compositionality: An Invitation to Applied Category Theory
     Brendan Fong, David I Spivak | arXiv.org, Published in 2018, 243 pages
196. Introductory Maths for Chemists
     J. E. Parker | Bookboon, Published in 2013, 136 pages
197. Several Complex Variables
     Michael Schneider, Yum-Tong Siu | Cambridge University Press, Published in 1999, 564 pages
198. A First Course in Mathematics Concepts for Elementary School Teachers
     Marcel B. Finan | Arkansas Tech University, Published in 2006, 452 pages
199. A Course In Algebraic Number Theory
     Robert B. Ash | University of Illinois, Published in 2003
200. Functional Analysis Lecture Notes
     T.B. Ward | University of East Anglia, Published in 2001, 73 pages
201. Men of Mathematics
     E.T. Bell | Archive.org, Published in 1937
202. First Steps in Numerical Analysis
     R. Hosking, S. Joe, D. Joyce, and J. Turner | , Published in 1998, 338 pages
203. Arithmetic Duality Theorems
     J.S. Milne | BookSurge Publishing, Published in 2006, 347 pages
204. Smarandache Near-rings
     W. B. Vasantha Kandasamy | American Research Press, Published in 2002, 201 pages
205. Elementary Practical Mathematics
     John Perry | The Macmillan Company, Published in 1913, 364 pages
206. Lectures on Discrete Subgroups of Lie Groups
     G.D. Mostow | Tata Institute of Fundamental Research, Published in 1969, 86 pages
207. Continuous Groups Of Transformations
     Luther Pfahler Eisenhart | Princeton University Press, Published in 1933, 319 pages
208. Semi-Riemann Geometry and General Relativity
     Shlomo Sternberg | , Published in 2003, 251 pages
209. Ordinary Differential Equations
     Stephen Wiggins | University of Bristol, Published in 2017, 146 pages
210. Introduction to Differential Geometry and General Relativity
     Stefan Waner | , Published in 2005, 138 pages
211. Partial Differential Equations with Maple
     Robert Piche, Keijo Ruohonen | Tampere University of Technology, Published in 1997, 131 pages
212. Basic Category Theory
     Jaap van Oosten | University of Utrecht, Published in 2007, 88 pages
213. A Practical Guide to Robust Optimization
     Bram L. Gorissen, Ihsan Yanıkoğlu, Dick den Hertog | arXiv, Published in 2015, 29 pages
214. Valuations and Hyperbolicity in Dynamics
     Thomas Ward | University of East Anglia, Published in 2001, 58 pages
215. Beginning Statistics
     Douglas S. Shafer, Zhiyi Zhang | lardbucket.org, Published in 2014, 716 pages
216. Introduction to the Theory of Statistics
     A. M. Mood, F. A. Graybill, D. C. Boes | McGraw-Hill, Published in 1974, 577 pages
217. Applied Discrete Structures
     Al Doerr, Ken Levasseur | Lulu.com, Published in 2013, 496 pages
218. Homotopy Theories and Model Categories
     W. G. Dwyer, J. Spalinski | University of Notre Dame, Published in 1995, 56 pages
219. Differential Calculus
     Pierre Schapira | Université Paris VI, Published in 2011, 60 pages
220. Lecture notes on C*-algebras, Hilbert C*-modules, and quantum mechanics
     N.P. Landsman | arXiv, Published in 1998, 90 pages
221. Introduction to Mathematical Philosophy
     Bertrand Russell | University of Massachusetts Amherst, Published in 2009, 181 pages
222. Lectures on Commutative Algebra
     Sudhir R. Ghorpade | Indian Institute of Technology, Bombay, Published in 2006, 64 pages
223. Lecture Notes on Embedded Contact Homology
     Michael Hutchings | arXiv, Published in 2013, 88 pages
224. Algebraic and Geometric Methods in Enumerative Combinatorics
     Federico Ardila | arXiv, Published in 2014, 143 pages
225. Probability and Statistics
     | UCLA, Published in 2012
226. Analytic geometry for colleges, universities, and technical schools
     E.W. Nichols | Leach, Shewell & Sanborn, Published in 1892, 304 pages
227. Mathematical Analysis I
     Elias Zakon | The Trillia Group, Published in 2004, 367 pages
228. Commutative Algebra
     Keerthi Madapusi | Harvard University, Published in 2007, 177 pages
229. Combinatory Analysis
     Percy A. MacMahon | Cambridge University Press, Published in 1915, 612 pages
230. Algorithms in Real Algebraic Geometry
     S. Basu, R. Pollack, M. Roy | Springer, Published in 2009, 672 pages
231. Lectures on Differential Equations
     Craig A. Tracy | University of California, Published in 2011, 131 pages
232. A Tour of Triangle Geometry
     Paul Yiu | Florida Atlantic University, Published in 2005, 52 pages
233. Lectures on Algebraic Groups
     Alexander Kleshchev | University of Oregon, Published in 2005, 166 pages
234. Real Functions in One Variable: Examples of Integrals
     Leif Mejlbro | BookBoon, Published in 2007, 154 pages
235. The Logic Of Chance
     John Venn | Macmillan And Company, Published in 1888, 550 pages
236. Metric and Topological Spaces
     T. W. Körner | University of Cambridge, Published in 2014, 109 pages
237. A Spiral Workbook for Discrete Mathematics
     Harris Kwong | Open SUNY Textbooks, Published in 2015, 307 pages
238. First Book in Arithmetic
     | W.W. Shannon, Published in 1905, 268 pages
239. Elementary Fuzzy Matrix Theory and Fuzzy Models for Social Scientists
     W. B. Vasantha Kandasamy, at al. | arXiv, Published in 2007, 352 pages
240. The Elementary Properties of the Elliptic Functions
     Alfred Cardew Dixon | Macmillan, Published in 1894, 164 pages
241. Topology and Physics: A Historical Essay
     C. Nash | arXiv, Published in 1997, 60 pages
242. Six Septembers: Mathematics for the Humanist
     Patrick Juola, Stephen Ramsay | Zea Books, Published in 2017, 433 pages
243. Numerical Methods for Large Eigenvalue Problems
     Yousef Saad | SIAM, Published in 2011, 285 pages
244. Galois Groups and Fundamental Groups
     Leila Schneps | Cambridge University Press, Published in 2003, 467 pages
245. Functions and Their Graphs
     J. Nicholas, J. Hunter, J. Hargreaves | University of Sydney, Published in 1997, 77 pages
246. Notes on Basic 3-Manifold Topology
     Allen Hatcher | , Published in 2000, 61 pages
247. Fundamentals of Linear Algebra
     Marcel B. Finan | Arkansas Tech University, Published in 2001, 196 pages
248. Axiomatic Set Theory I
     A. C. Walczak-Typke | , Published in 2009, 128 pages
249. Elementary Algebra
     Denny Burzynski, Wade Ellis | Saunders College Publishing, Published in 1989, 544 pages
250. A Friendly Introduction to Differential Equations
     Mohammed K A Kaabar | , Published in 2015, 164 pages
251. Notes on the Science of Logic
     Nuel Belnap | University of Pittsburgh, Published in 2009, 227 pages
252. Notes on Automorphic Functions
     Anders Thorup | Kobenhavns Universitet, Published in 1995, 186 pages
253. Geometry: From Ancient to Modern
     Wong Yan Loi | National University of Singapore, Published in 1999, 52 pages
254. A Sampler of Riemann-Finsler Geometry
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438. Explaining Logarithms
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485. A Course of Elementary Mathematics
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487. Introduction to the Numerical Integration of PDEs
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490. Bayesian Spectrum Analysis and Parameter Estimation
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492. Think Stats: Probability and Statistics for Programmers
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497. H2 Mathematics Textbook
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500. Groups Around Us
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