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. An Introduction to Determinants
   William Thomson | , Published in 1882, 122 pages
2. The Theory of Lie Derivatives and Its Applications
   Kentaro Yano | North Holland Publishing Co., Published in 1955, 321 pages
3. An Introduction to Higher Mathematics
   Patrick Keef, David Guichard, Russ Gordon | Whitman College, Published in 2010, 144 pages
4. Higher Algebra
   Jacob Lurie | Harvard University, Published in 2017, 1166 pages
5. Lectures on Topics In The Theory of Infinite Groups
   B.H. Neumann | Tata Institute of Fundamental Research, Published in 1960, 200 pages
6. Banach Spaces of Analytic Functions
   enneth Hoffman | Prentice-Hall, Published in 1962, 242 pages
7. Introduction to Differential Topology
   Uwe Kaiser | Boise State University, Published in 2006, 110 pages
8. Fundamentals of Practical Mathematics
   George Wentworth | Ginn and Co., Published in 1922, 220 pages
9. Partial Differential Equations with Maple
   Robert Piche, Keijo Ruohonen | Tampere University of Technology, Published in 1997, 131 pages
10. Supplementary Algebra
    Robert L. Short | D.C. Heath & Co., Published in 1905, 60 pages
11. CK-12 Single Variable Calculus
    R. Almukkahal, V. Cifarelli, C. Fan, L. Jarvis | CK-12 Foundation, Published in 2009, 457 pages
12. Clifford Algebra, Geometric Algebra, and Applications
    Douglas Lundholm, Lars Svensson | arXiv, Published in 2009, 117 pages
13. Operators on Hilbert Space
    John Erdos | King's College London, Published in 2004, 52 pages
14. Set Theory
    Gary Hardegree | UMass Amherst, Published in 2003
15. Linear Methods of Applied Mathematics
    Evans M. Harrell II, James V. Herod | , Published in 2000
16. The Hopf Bifurcation and Its Applications
    J. E. Marsden, M. McCracken | Springer, Published in 1976, 424 pages
17. Group Theory
    Ferdi Aryasetiawan | University of Lund, Published in 1997, 140 pages
18. Harmonic Analysis, the Trace Formula, and Shimura Varieties
    J. Arthur, D. Ellwood, R. Kottwitz | American Mathematical Society, Published in 2005, 706 pages
19. Notes on Diffy Qs: Differential Equations for Engineers
    Jiří Lebl | Lulu.com, Published in 2017, 371 pages
20. Geometric Transformation of Finite Element Methods: Theory and Applications
    M. Holst, M. Licht | arXiv.org, Published in 2018, 21 pages
21. Plane and Spherical Trigonometry in three parts
    Henry Bedingfield Goodwin | Longmans, Green, and Co., Published in 1907, 296 pages
22. Introduction to Linear Bialgebra
    W.B.V. Kandasamy, F. Smarandache, K. Ilanthenral | arXiv, Published in 2005, 238 pages
23. Introduction to Evolution Equations in Geometry
    Bianca Santoro | arXiv, Published in 2012, 91 pages
24. Groups as Graphs
    W. B. V. Kandasamy, F. Smarandache | CuArt, Published in 2009, 170 pages
25. Galois Theory
    Miles Reid | University of Warwick, Published in 2004, 89 pages
26. Pluckings from the tree of Smarandache: Sequences and functions
    Charles Ashbacher | American Research Press, Published in 1998, 80 pages
27. Theory of Functions of a Complex Variable
    Andrew Russell Forsyth | Cambridge University Press, Published in 1918, 892 pages
28. Lectures on Topics in Algebraic Number Theory
    Sudhir R. Ghorpade | Indian Institute of Technology, Bombay, Published in 2002, 83 pages
29. Algebra I
    | CK-12 Foundation, Published in 2009, 992 pages
30. Languages and Machines
    C. D. H. Cooper | Macquarie University, Published in 2008
31. Stochastic Processes
    David Nualart | The University of Kansas, Published in 2017, 82 pages
32. A Primer on Homotopy Colimits
    Daniel Dugger | University of Oregon, Published in 2008, 72 pages
33. Algorithms in Real Algebraic Geometry
    S. Basu, R. Pollack, M. Roy | Springer, Published in 2009, 672 pages
34. Lectures On Some Fixed Point Theorems Of Functional Analysis
    F.F. Bonsall | Tata Institute Of Fundamental Research, Published in 1962, 147 pages
35. An Introduction to D-Modules
    Jean-Pierre Schneiders | Universite de Liege, Published in 1991, 73 pages
36. Introductory Finite Difference Methods for PDEs
    D. M. Causon, C. G. Mingham | BookBoon, Published in 2010, 144 pages
37. Plane and Solid Analytic Geometry
    W. F. Osgood, W. C. Graustein | Macmillan and co., Published in 1921, 651 pages
38. Elementary Differential Geometry
    Gilbert Weinstein | UAB, Published in 2009, 62 pages
39. Topics in Differential Geometry
    Peter W. Michor | American Mathematical Society, Published in 2008, 429 pages
40. Complex Analysis for Mathematics and Engineering
    John H. Mathews, Russell W. Howell | Jones & Bartlett Learning, Published in 2006, 633 pages
41. Combinatorial Geometry with Application to Field Theory
    Linfan Mao | InfoQuest, Published in 2009, 499 pages
42. Geometry of Surfaces
    Nigel Hitchin | , Published in 2013, 101 pages
43. Lecture Notes on Graph Theory
    Tero Harju | University of Turku, Published in 2011, 100 pages
44. Real Variables: With Basic Metric Space Topology
    Robert B. Ash | Institute of Electrical & Electronics Engineering, Published in 2007, 213 pages
45. Lecture Notes on Free Probability
    Vladislav Kargin | arXiv, Published in 2013, 100 pages
46. History of Modern Mathematics
    David Eugene Smith | Columbia University, Published in 1906, 75 pages
47. Topics in Real and Functional Analysis
    Gerald Teschl | Universitaet Wien, Published in 2016, 486 pages
48. Introduction to Algebraic Topology and Algebraic Geometry
    U. Bruzzo | , Published in 2008, 138 pages
49. Category Theory: A Gentle Introduction
    Peter Smith | Logic Matters, Published in 2016, 283 pages
50. Spherical Harmonics in p Dimensions
    Christopher Frye, Costas J. Efthimiou | arXiv, Published in 2012, 95 pages
51. Decision Making and Productivity Measurement
    Dariush Khezrimotlagh | arXiv, Published in 2016, 214 pages
52. Introduction to Mathematical Logic: A problem solving course
    Arnold W. Miller | arXiv, Published in 1996, 75 pages
53. An Introduction to the Smarandache Function
    Charles Ashbacher | Erhus Univ Pr, Published in 1995, 62 pages
54. Stacks Project
    Johan de Jong, et al. | , Published in 2012, 3428 pages
55. Optimal Stopping and Applications
    Thomas S. Ferguson | UCLA, Published in 2008
56. Determinants and Matrices
    R. Kochendörfer | Teubner, Published in 1961
57. Lectures on Lie Groups and Representations of Locally Compact Groups
    F. Bruhat | Tata Institute of Fundamental Research, Published in 1958, 140 pages
58. Chaos Theory
    Kais A. Mohamedamen Al Naimee (ed.) | InTech, Published in 2018, 260 pages
59. Notes on the Atiyah-Singer Index Theorem
    Liviu I. Nicolaescu | University of Notre Dame, Published in 2005, 135 pages
60. Linear Complementarity, Linear and Nonlinear Programming
    Katta G. Murty | , Published in 1997, 613 pages
61. Elements of the Differential and Integral Calculus
    William Anthony Granville | Ginn, Published in 1911, 493 pages
62. Category Theory Lecture Notes
    Michael Barr, Charles Wells | , Published in 1999, 133 pages
63. Abstract Algebra: Theory and Applications
    Thomas Judson | Virginia Commonwealth University Mathematics, Published in 2009, 428 pages
64. Wave Propagation Analysis with Boundary Element Method
    Chiara Guardasoni | Ledizioni LediPublishing, Published in 2010, 130 pages
65. Lectures on Linear Algebra and Matrices
    G. Donald Allen | Texas A&M University, Published in 2003, 238 pages
66. Category Theory for the Sciences
    David I. Spivak | The MIT Press, Published in 2014, 496 pages
67. Fundamentals of Geometry
    Oleg A. Belyaev | Moscow State University, Published in 2007, 256 pages
68. Classical Algebraic Geometry: A Modern View
    Igor V. Dolgachev | Cambridge University Press, Published in 2012, 716 pages
69. Lectures on Etale Cohomology
    J. S. Milne | , Published in 2008, 196 pages
70. Lectures on Periodic Homogenization of Elliptic Systems
    Zhongwei Shen | arXiv.org, Published in 2017, 246 pages
71. Arithmetic for Engineers
    Charles B. Clapham | Chapman & Hall, Published in 1925, 526 pages
72. Elementary Calculus
    Michael Corral | mecmath.net, Published in 2021, 348 pages
73. The Geometry of Vector Calculus
    Tevian Dray, Corinne A. Manogue | Oregon State University, Published in 2012, 325 pages
74. An Elementary Course in Synthetic Projective Geometry
    Derrick Norman Lehmer | Project Gutenberg, Published in 2005, 120 pages
75. Interactive Real Analysis
    Bert G. Wachsmuth | Seton Hall University, Published in 2007
76. On Some of Smarandache's Problems
    Krassimir Atanassov | Erhus Univ Pr, Published in 1999, 89 pages
77. Introduction to Twisted Commutative Algebras
    Steven V Sam, Andrew Snowden | arXiv, Published in 2012, 56 pages
78. Tensor Trigonometry
    A.S. Ninul | FIZMATLIT, Published in 2021, 320 pages
79. Manifolds: Current Research Areas
    Paul Bracken (ed.) | InTech, Published in 2017, 158 pages
80. Introduction to Algebraic Number Theory
    William Stein | University of Washington, Published in 2005, 140 pages
81. Linearization via the Lie Derivative
    Carmen Chicone, Richard Swanson | American Mathematical Society, Published in 2000, 64 pages
82. Elementary Abstract Algebra: Examples and Applications
    Justin Hill, Chris Thron | Texas A&M University, Published in 2017, 785 pages
83. Calculus and Differential Equations
    John Avery | Learning Development Institute, Published in 2010, 137 pages
84. Computational Modeling and Mathematics Applied to the Physical Sciences
    | National Academy Press, Published in 1984, 108 pages
85. Applied Stochastic Processes in Science and Engineering
    Matt Scott | University of Waterloo, Published in 2013, 316 pages
86. Tabletop: Analog Game Design
    Greg Costikyan, Drew Davidson | , Published in 2011, 206 pages
87. Combinatorial Algorithms
    Albert Nijenhuis, Herbert S. Wilf | Academic Press Inc, Published in 1978, 316 pages
88. Mathematical Theory of Scattering Resonances
    Semyon Dyatlov, Maciej Zworski | MIT, Published in 2018, 640 pages
89. Calculus III
    Paul Dawkins | Lamar University, Published in 2011, 287 pages
90. Definitions, Solved and Unsolved Problems, Conjectures, and Theorems in Number Theory and Geometry
    Florentin Smarandache | Amer Research Pr, Published in 2000, 84 pages
91. Smarandache Rings
    W. B. Vasantha Kandasamy | American Research Press, Published in 2002, 222 pages
92. Foundations in Statistical Reasoning
    Pete Kaslik | , Published in 2018, 310 pages
93. Notes on Optimization
    Pravin Varaiya | Van Nostrand, Published in 1972, 140 pages
94. Differential and Integral Calculus
    Virgil Snyder | American book company, Published in 1902, 348 pages
95. Digraphs: Theory, Algorithms and Applications
    Jorgen Bang-Jensen, Gregory Gutin | Springer, Published in 2002, 772 pages
96. Preparing for College Physics
    David Murdock | TTU, Published in 2002, 64 pages
97. The Manual of Mathematical Magic
    Peter McOwan | Queen Mary, University of London, Published in 2010, 96 pages
98. Traveling Wave Solutions of Parabolic Systems
    A. Volpert, V. Volpert, V. Volpert | American Mathematical Society, Published in 2000, 448 pages
99. Notes on Algebraic Structures
    Peter J. Cameron | Queen Mary, University of London, Published in 2006, 102 pages
100. Calculus Made Easy
     Silvanus P. Thompson | The MacMillan Company, Published in 1914, 315 pages
101. Neutral and Non-Euclidean Geometries
     David C. Royster | UNC Charlotte, Published in 2000, 145 pages
102. Unsolved Problems in Virtual Knot Theory and Combinatorial Knot Theory
     R. Fenn, D.P. Ilyutko, L.H. Kauffman, V.O. Manturov | arXiv, Published in 2014, 66 pages
103. Math in Society
     David Lippman | Lulu.com, Published in 2013, 432 pages
104. Advanced High-School Mathematics
     David B. Surowski | Kansas State University, Published in 2011, 435 pages
105. Lectures on Statistics
     Robert B. Ash | University of Illinois, Published in 2007
106. Geometric Theorems and Arithmetic Functions
     Jozsef Sandor | American Research Press, Published in 2002, 55 pages
107. Modeling, Functions, and Graphs: Algebra for College Students
     Katherine Yoshiwara | Los Angeles Pierce College, Published in 2017, 344 pages
108. Mathematical Computation
     Ian Craw | University of Aberdeen, Published in 2003, 156 pages
109. A Short History of Greek Mathematics
     James Gow | Cambridge University Press, Published in 1884, 351 pages
110. The Principles Of Mathematics
     Bertrand Russell | W. W. Norton & Company, , 579 pages
111. Triangles, Rotation, a Theorem and the Jackpot
     Dave Auckly | arXiv, Published in 2013, 43 pages
112. The Game of Logic
     Lewis Carroll | MacMillan, Published in 1887, 128 pages
113. Elementary Geometry: Practical and Theoretical
     C. Godfrey, A. W. Siddons | Cambridge University Press, Published in 1919, 438 pages
114. Basic Linear Algebra
     Andrew Baker | University of Glasgow, Published in 2008, 73 pages
115. Strings and Geometry
     M. Douglas, J. Gauntlett, M. Gross | American Mathematical Society, Published in 2004, 384 pages
116. Graph Theory
     Reinhard Diestel | Springer, Published in 2005, 422 pages
117. Lectures On The General Theory Of Integral Functions
     Georges Valiron | Chelsea Pub. Co., Published in 1949, 234 pages
118. Lectures on the Theory of Algebraic Functions of One Variable
     M. Deuring | Tata Institute of Fundamental Research, Published in 1959, 154 pages
119. A First Course in Complex Analysis
     M. Beck, G. Marchesi, D. Pixton | San Francisco State University, Published in 2012, 127 pages
120. Beyond partial differential equations: A course on linear and quasi-linear abstract hyperbolic evolution equations
     Horst R. Beyer | arXiv, Published in 2011, 275 pages
121. Notes on Basic 3-Manifold Topology
     Allen Hatcher | , Published in 2000, 61 pages
122. Quadratic Forms and Their Applications
     Andrew Ranicki, et al. | American Mathematical Society, Published in 2000, 314 pages
123. Art Gallery Theorems and Algorithms
     Joseph O'Rourke | Oxford University Press, Published in 1987, 296 pages
124. Model Theory, Algebra and Geometry
     D. Haskell, A. Pillay, C. Steinhorn | Cambridge University Press, Published in 2000, 227 pages
125. Sam Loyd's Cyclopedia of 5000 Puzzles tricks and Conundrums
     Sam Loyd | The Lamb Publishing Company, Published in 1914, 194 pages
126. General Topology
     Pierre Schapira | Université Paris VI, Published in 2011, 78 pages
127. Finite Group Representations for the Pure Mathematician
     Peter Webb | University of Minnesota, Published in 2007, 183 pages
128. Geometric Topology: Localization, Periodicity and Galois Symmetry
     Dennis Sullivan | Springer, Published in 2005, 296 pages
129. Algebraic Equations
     George Ballard Mathews | Cambridge University Press, Published in 1907, 88 pages
130. Course of Analytical Geometry
     Ruslan Sharipov | UFA, Published in 2011, 226 pages
131. Intersection Graphs: An Introduction
     Madhumangal Pal | arXiv, Published in 2014, 49 pages
132. Practical Mathematics for Home Study
     Claude Irwin Palmer | McGraw-Hill, Published in 1919, 528 pages
133. Introduction to Categories and Categorical Logic
     Samson Abramsky, Nikos Tzevelekos | arXiv, Published in 2011, 101 pages
134. Intro to Abstract Algebra
     Paul Garrett | , Published in 1998, 200 pages
135. Probability and Statistics: A Course for Physicists and Engineers
     Arak M. Mathai, Hans J. Haubold | De Gruyter Open, Published in 2017, 582 pages
136. On Advanced Analytic Number Theory
     C.L. Siegel | Tata Institute of Fundamental Research, Published in 1961, 241 pages
137. Introduction to Lebesgue Integration
     W W L Chen | Macquarie University, Published in 1996, 75 pages
138. Prerequisites in Algebraic Topology
     Bjorn Ian Dundas | NTNU, Published in 2005, 55 pages
139. An Inquiry-Based Introduction to Proofs
     Jim Hefferon | Saint Michael's College, Published in 2013, 23 pages
140. Algebraic and Geometric Methods in Enumerative Combinatorics
     Federico Ardila | arXiv, Published in 2014, 143 pages
141. Global Analysis: Functional Analysis Examples
     Leif Mejlbro | BookBoon, Published in 2009, 78 pages
142. Linear Algebra
     Jonathan Gleason | University of California, Published in 2018, 681 pages
143. Topics in Logic and Foundations
     Stephen G. Simpson | The Pennsylvania State University, Published in 2005, 89 pages
144. Applied Probability
     Paul E Pfeiffer | Connexions, Published in 2008, 634 pages
145. Seminar on Triples and Categorical Homology Theory
     B. Eckmann | Springer, Published in 1969, 304 pages
146. A Feel for Statistics
     Ivan Lowe | scientificlanguage.com, Published in 2016, 121 pages
147. Real Functions in One Variable: Simple Differential Equations I
     Leif Mejlbro | BookBoon, Published in 2007, 118 pages
148. Aesthetics for the Working Mathematician
     Jonathan M. Borwein | DocServer, Published in 2001, 22 pages
149. First Course in Statistics
     D Caradog Jones | G Bell, Published in 1921, 288 pages
150. Basic Algebra
     Anthony W. Knapp | , Published in 2016, 762 pages
151. Algebra: Abstract and Concrete
     Frederick M. Goodman | Semisimple Press, Published in 2015, 587 pages
152. Math Alive
     Ingrid Daubechies, Shannon Hughes | Princeton University, Published in 2008, 454 pages
153. The Air Force Brain Booster Book
     John C. Sparks | Air Force Publication, Published in 2006, 58 pages
154. A Concise Course in Algebraic Topology
     J. P. May | University Of Chicago Press, Published in 1999, 251 pages
155. Lectures on Expansion Techniques In Algebraic Geometry
     S.S. Abhyankar | Tata Institute Of Fundamental Research, Published in 1977, 169 pages
156. Trigonometry
     Ted Sundstrom, Steven Schlicker | Grand Valley State University, Published in 2016, 442 pages
157. Tilings and Patterns
     E O Harriss | Mathematicians.org.uk, Published in 2008, 43 pages
158. Formal Logic
     | Wikibooks, Published in 2009
159. Differential Calculus
     Pierre Schapira | Université Paris VI, Published in 2011, 60 pages
160. Primary Mathematics
     | Wikibooks, Published in 2012
161. Sets, Groups and Knots
     Curtis T. McMullen | Harvard University, Published in 2008, 56 pages
162. The Philosophy of Mathematics
     Auguste Comte | Harper & brothers, Published in 1851, 276 pages
163. Applied Mathematical Programming Using Algebraic Systems
     Bruce A. McCarl, Thomas H. Spreen | Texas A&M University, Published in 2011, 567 pages
164. Topology
     David Wilkins | Trinity College, Dublin, Published in 2001
165. Bayesian Methods for Statistical Analysis
     Borek Puza | ANU Press, Published in 2015, 697 pages
166. A First Course in Topology: Continuity and Dimension
     John McCleary | American Mathematical Society, Published in 2006, 210 pages
167. Mathematical Methods of Engineering Analysis
     Erhan Cinlar, Robert J. Vanderbei | , Published in 2000, 119 pages
168. An Introduction to Mathematical Reasoning
     Peter J. Eccles | Cambridge University Press, Published in 2007, 364 pages
169. A Problem Text in Advanced Calculus
     John M. Erdman | Portland State University, Published in 2008, 377 pages
170. Implementing Mathematics with The Nuprl Proof Development System
     R. L. Constable, at al. | Prentice Hall, Published in 1986
171. On Riemann's Theory of Algebraic Functions and their Integrals
     Felix Klein | Macmillan and Bowes, Published in 1893, 128 pages
172. Graph Theory With Applications
     J.A. Bondy and U.S.R. Murty | Elsevier Science Ltd, Published in 1976, 270 pages
173. New Frontiers in Graph Theory
     Yagang Zhang (ed.) | InTech, Published in 2012, 526 pages
174. Probability: Theory and Examples
     Rick Durrett | Cambridge University Press, Published in 2010, 372 pages
175. Foundations of Constructive Probability Theory
     Yuen-Kwok Chan | arXiv.org, Published in 2019, 517 pages
176. Numerical Methods with Applications
     Autar K Kaw, Egwu Eric Kalu | Lulu.com, Published in 2008, 728 pages
177. Model Theory
     Stephen G. Simpson | The Pennsylvania State University, Published in 1998, 127 pages
178. Algebraic and Geometric Topology
     Andrew Ranicki, Norman Levitt, Frank Quinn | Springer, Published in 1985, 436 pages
179. Interacting Particle Systems
     Stefan Grosskinsky | University of Warwick, Published in 2009, 56 pages
180. Elliptic Integrals
     Harris Hancock | J. Wiley, Published in 1917, 118 pages
181. Immersive Linear Algebra
     J. Strom, K. Astrom, T. Akenine-Moller | immersivemath, Published in 2017, 205 pages
182. A Course in Mathematical Analysis
     E. Goursat, O. Dunkel, E.R. Hedrick | Ginn & company, Published in 1904, 1890 pages
183. Manifolds
     Neil Lambert | King's College London, Published in 2011, 59 pages
184. Introduction to Symplectic and Hamiltonian Geometry
     Ana Cannas da Silva | , Published in 2007, 158 pages
185. Vector Analysis and the Theory of Relativity
     Francis Dominic Murnaghan | Johns Hopkins press, Published in 1922, 156 pages
186. Introduction to Probability
     C. M. Grinstead, J. L. Snell | American Mathematical Society, Published in 1997, 518 pages
187. Substitutions in Dynamics, Arithmetics, and Combinatorics
     Pierre Arnoux, et al. | Springer, Published in 2002, 419 pages
188. Intermediate Maths for Chemists
     J. E. Parker | Bookboon, Published in 2013, 106 pages
189. Lecture notes on C*-algebras, Hilbert C*-modules, and quantum mechanics
     N.P. Landsman | arXiv, Published in 1998, 90 pages
190. Advanced Algebra
     Herbert E. Hawkes | Ginn and Company, Published in 1905, 314 pages
191. Iterative Methods for Linear and Nonlinear Equations
     C.T. Kelley | SIAM, Published in 1995, 172 pages
192. Fractal Geometry
     Michael Frame, Benoit Mandelbrot, Nial Neger | Yale University, Published in 2009, 323 pages
193. Topology of Numbers
     Allen Hatcher | Cornell University, Published in 2014, 122 pages
194. Homogeneous Spaces and Equivariant Embeddings
     Dmitri A. Timashev | arXiv, Published in 2006, 250 pages
195. Trigonometry for Beginners
     J. B. Lock | The MacMillan Company, Published in 1896, 236 pages
196. Differential Equations and Linear Algebra
     Simon J.A. Malham | Heriot-Watt University, Published in 2010, 95 pages
197. Advanced Data Analysis from an Elementary Point of View
     Cosma Rohilla Shalizi | Cambridge University Press, Published in 2013, 586 pages
198. Surgery on Compact Manifolds
     C.T.C. Wall, A. A. Ranicki | American Mathematical Society, Published in 1999, 314 pages
199. Partial Differential Equations for Finance
     Robert V. Kohn | New York University, Published in 2003, 121 pages
200. Comments and topics on Smarandache notions and problems
     Kenichiro Kashihara | Erhus University Press, Published in 1996, 50 pages
201. Topics in Algebraic Combinatorics
     Richard P. Stanley | MIT, Published in 2013, 127 pages
202. Numerical Methods for Large Eigenvalue Problems
     Yousef Saad | SIAM, Published in 2011, 285 pages
203. Nonstandard Analysis in Topology
     Sergio Salbany, Todor Todorov | arXiv, Published in 2011, 48 pages
204. Knot Diagrammatics
     Louis H. Kauffman | arXiv, Published in 2004, 107 pages
205. Functions of a Complex Variable
     Thomas S. Fiske | John Wiley & sons, Published in 1907, 122 pages
206. Frobenius Splittings and B-Modules
     Wilberd van der Kallen | Springer, Published in 1993, 112 pages
207. Language, Proof and Logic
     Jon Barwise, John Etchemendy | Center for the Study of Language, Published in 2011, 620 pages
208. Multivariable and Vector Analysis
     W W L Chen | Macquarie University, Published in 2008, 203 pages
209. Geometry: From Ancient to Modern
     Wong Yan Loi | National University of Singapore, Published in 1999, 52 pages
210. A Practical Arithmetic
     Frank Lincoln Stevens | C. Scribner's sons, Published in 1910, 404 pages
211. Notes on Category Theory with examples from basic mathematics
     Paolo Perrone | arXiv, Published in 2021, 181 pages
212. Projective Differential Geometry Old and New
     V. Ovsienko, S. Tabachnikov | Cambridge University Press, Published in 2004, 281 pages
213. Notes on Discrete Mathematics
     Miguel A. Lerma | , Published in 2005, 154 pages
214. Set Linear Algebra and Set Fuzzy Linear Algebra
     W. B. V. Kandasamy, F. Smarandache, K. Ilanthenral | InfoLearnQuest, Published in 2008, 345 pages
215. Topics in dynamics I: Flows
     Edward Nelson | Princeton University Press, Published in 1969, 122 pages
216. Elementary Algebra
     John Redden | The Saylor Foundation, Published in 2011, 1334 pages
217. Ample Subvarieties of Algebraic Varieties
     Robin Hartshorne | Springer, Published in 1970, 273 pages
218. The Elements of Non-Euclidean Plane Geometry and Trigonometry
     Horatio Scott Carslaw | Longmans, Green and co., Published in 1916, 202 pages
219. Topics in Random Matrix Theory
     Terence Tao | , Published in 2011, 340 pages
220. A Brief History of Mathematics
     Karl Fink | Open Court Publishing Company, Published in 1900, 366 pages
221. Archimedes
     Thomas Little Heath | , Published in 1920, 76 pages
222. Geometry for Elementary School
     | Wikibooks, Published in 2007, 72 pages
223. Mathematics for Engineers
     William Neville Rose | Chapman, Published in 1922
224. Introduction to Functional Analysis
     Vladimir V. Kisil | University of Leeds, Published in 2021, 166 pages
225. Partial Differential Equations of Mathematical Physics
     William W. Symes | Rice University, Published in 2006, 105 pages
226. Set Theoretic Approach to Algebraic Structures in Mathematics
     W. B. Vasantha Kandasamy, Florentin Smarandache | Educational Publisher, Published in 2013, 168 pages
227. Numerical Recipes in Fortran 90
     William H. Press, at al. | Cambridge University Press, Published in 1996, 500 pages
228. Basic Real Analysis
     Anthony W. Knapp | Birkhäuser, Published in 2016, 840 pages
229. An Introduction to Real Analysis
     John K. Hunter | University of California Davis, Published in 2014, 305 pages
230. Riemannian Geometry
     Richard L. Bishop | arXiv, Published in 2013, 67 pages
231. Algebraic K-Theory
     Hyman Bass | W. A. Benjamin, Published in 1968, 793 pages
232. Lectures on Mean Periodic Functions
     J.P. Kahane | Tata Institute of Fundamental Research, Published in 1959, 165 pages
233. Modular Forms, Hecke Operators, and Modular Abelian Varieties
     Kenneth A. Ribet, William A. Stein | University of Washington, Published in 2003, 154 pages
234. Calculus for Beginners and Artists
     Daniel Kleitman | MIT, Published in 2009
235. Introduction to Analysis
     Irena Swanson | Purdue University, Published in 2020, 353 pages
236. A Sampler of Riemann-Finsler Geometry
     D. Bao, R. Bryant, S. Chern, Z. Shen | Cambridge University Press, Published in 2004, 376 pages
237. Introduction to Vectors
     Christopher C. Tisdell | Bookboon, Published in 2014, 68 pages
238. Fundamental Concepts of Mathematics
     Farshid Hajir | University of Massachusetts, Published in 2005, 69 pages
239. Second-order Ordinary Differential Equations
     R.S. Johnson | Bookboon, Published in 2012, 181 pages
240. Statistics for Business and Economics
     Marcelo Fernandes | BookBoon, Published in 2009, 150 pages
241. Linear Algebra, Infinite Dimensions, and Maple
     James V. Herod | Georgia Tech, Published in 1997
242. Why are Braids Orderable?
     Patrick Dehornoy, at al. | , Published in 2010, 206 pages
243. Numerical Analysis I
     Mark Embree | Rice University, Published in 2012, 207 pages
244. Hilbert Spaces and Operators on Hilbert Spaces
     Leif Mejlbro | BookBoon, Published in 2009, 109 pages
245. Elementary Trigonometry
     W. E. Paterson | Clarendon Press, Published in 1911, 213 pages
246. Differential Geometrical Theory of Statistics
     Frederic Barbaresco, Frank Nielsen (eds) | MDPI AG, Published in 2017, 474 pages
247. Complex Manifolds
     Julius Ross | Stanford University, Published in 2014, 119 pages
248. Famous Problems of Elementary Geometry
     Felix Klein | Ginn and Co., Published in 1897, 108 pages
249. Representation Theory of Compact Groups
     Michael Ruzhansky, Ville Turunen | Aalto TKK, Published in 2008, 135 pages
250. Beginning Statistics
     Douglas S. Shafer, Zhiyi Zhang | lardbucket.org, Published in 2014, 716 pages
251. An Introductory Course in Elementary Number Theory
     Wissam Raji | The Saylor Foundation, Published in 2013, 171 pages
252. Handbook of Engineering Mathematics
     Walter E. Wynne, William Spraragen | Van Nostrand, Published in 1916, 246 pages
253. Introduction to Stokes Structures
     Claude Sabbah | arXiv, Published in 2010, 157 pages
254. Algebraic Number Theory
     J.S. Milne | , Published in 2008, 163 pages
255. Algebraic L-theory and Topological Manifolds
     A. A. Ranicki | Cambridge University Press, Published in 2011, 365 pages
256. Book of Proof
     Richard Hammack | Virginia Commonwealth University, Published in 2009, 270 pages
257. Principles of Uncertainty
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