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. Symmetry Groups and Their Applications
   Willard Miller | Academic Press, Published in 1972
2. Lectures on Numerical Methods for Non-Linear Variational Problems
   R. Glowinski | Tata Institute of Fundamental Research, Published in 1980, 265 pages
3. Trigonometry
   Ted Sundstrom, Steven Schlicker | Grand Valley State University, Published in 2016, 442 pages
4. Logic for Computer Science
   | Wikibooks, Published in 2010
5. The Matrix Cookbook
   Kaare Brandt Petersen, Michael Syskind Pedersen | , Published in 2008, 67 pages
6. Engineering Analysis
   | Wikibooks, Published in 2012, 193 pages
7. Introduction to Differential Topology
   Uwe Kaiser | Boise State University, Published in 2006, 110 pages
8. Calculus in Context
   James Callahan, et al. | Five Colleges, Inc., Published in 2008, 869 pages
9. Introduction to Tensor Calculus
   Kees Dullemond, Kasper Peeters | University of Heidelberg, Published in 2010, 53 pages
10. Notes on Numerical Linear Algebra
    George Benthien | , Published in 2006, 72 pages
11. Numerical Methods for Large Eigenvalue Problems
    Yousef Saad | SIAM, Published in 2011, 285 pages
12. Linear Algebra: Course
    Peter Saveliev | , Published in 2012, 242 pages
13. Linear Algebra: Theorems and Applications
    Hassan Abid Yasser (ed.) | InTech, Published in 2012, 250 pages
14. Functions Of A Complex Variable with Applications
    E. G. Phillips | Oliver And Boyd, Published in 1961, 160 pages
15. Theoretic Arithmetic
    Thomas Taylor, A. J. Valpy | , Published in 1816, 286 pages
16. Numerical Solutions of Engineering Problems
    K. Nandakumar | University of Alberta, Published in 1998, 193 pages
17. Lectures on Linear Logic
    A. S. Troelstra | CSLI, Published in 1992, 215 pages
18. Roots of a Compact Lie Group
    Kristopher Tapp | arXiv, Published in 2009, 39 pages
19. Commutative Algebra
    Pete L. Clark | University of Georgia, Published in 2015, 363 pages
20. An introduction to Algebra and Topology
    Pierre Schapira | University of Luxemburg, Published in 2012, 78 pages
21. The Chaos Hypertextbook
    Glenn Elert | , Published in 2007
22. Categories, Types, and Structures
    Andrea Asperti, Giuseppe Longo | MIT Press, Published in 1991, 300 pages
23. Finite Difference Computing with PDEs
    Hans Petter Langtangen, Svein Linge | Springer, Published in 2017, 507 pages
24. Elliptic Curves over Function Fields
    Douglas Ulmer | arXiv, Published in 2011, 72 pages
25. Notes on the Atiyah-Singer Index Theorem
    Liviu I. Nicolaescu | University of Notre Dame, Published in 2005, 135 pages
26. A Quick Review of Commutative Algebra
    Sudhir R. Ghorpade | Indian Institute of Technology, Bombay, Published in 2000, 13 pages
27. A First Course in Mathematics Concepts for Elementary School Teachers
    Marcel B. Finan | Arkansas Tech University, Published in 2006, 452 pages
28. Theory of Symmetry and Ornament
    Slavik V. Jablan | Matematicki Institut, Published in 1995, 331 pages
29. Shadows of the Truth: Metamathematics of Elementary Mathematics
    Alexandre Borovik | American Mathematical Society, Published in 2010, 293 pages
30. Determinantal Rings
    Winfried Bruns, Udo Vetter | Springer, Published in 1988, 244 pages
31. Dynamical Systems and Sheaves
    D. I. Spivak, C. Vasilakopoulou, P. Schultz | arXiv, Published in 2016, 65 pages
32. CK-12 Algebra I
    Andrew Gloag, Anne Gloag | CK-12 Basic Algebra Concepts, Published in 2010, 825 pages
33. Calculus
    | Wikibooks, Published in 2011, 456 pages
34. Mirror Symmetry
    Cumrun Vafa, Eric Zaslow | American Mathematical Society, Published in 2003, 950 pages
35. Introduction to Abstract Algebra
    D. S. Malik, John N. Mordeson, M.K. Sen | Creighton University, Published in 2007, 276 pages
36. Differentiable Manifolds
    Nigel Hitchin | , Published in 2003, 94 pages
37. How We Got From There to Here: A Story of Real Analysis
    Robert Rogers, Eugene Boman | Open SUNY Textbooks, Published in 2013, 210 pages
38. Notes on Differential Geometry and Lie Groups
    Jean Gallier | University of Pennsylvania, Published in 2010
39. Kähler-Einstein metrics: Old and New
    Daniele Angella, Cristiano Spotti | arXiv.org, Published in 2017, 48 pages
40. Inner Algebra
    Aaron Maxwell | Lulu.com, Published in 2005, 94 pages
41. Algebraic Curves: an Introduction to Algebraic Geometry
    William Fulton | Benjamin, Published in 1969, 129 pages
42. Sets, Groups and Knots
    Curtis T. McMullen | Harvard University, Published in 2008, 56 pages
43. Workbook in Higher Algebra
    David Surowski | , Published in 1992, 194 pages
44. Advanced Problems in Mathematics: Preparing for University
    Stephen Siklos | Open Book Publishers, Published in 2016, 189 pages
45. Computer analysis of number sequences
    Henry Ibstedt | American Research Press, Published in 1998, 86 pages
46. Lectures on Some Aspects of p-Adic Analysis
    F. Bruhat | Tata Institute of Fundamental Research, Published in 1963, 147 pages
47. Geometry of Four Dimensions
    Parker Manning Henry | The MacMillan Company, Published in 1914, 378 pages
48. Amusements in Mathematics
    Henry Ernest Dudeney | Nelson, Published in 1917, 280 pages
49. n-Linear Algebra of Type II
    W. B. V. Kandasamy, F. Smarandache | InfoLearnQuest, Published in 2008, 231 pages
50. Spherical Harmonics in p Dimensions
    Christopher Frye, Costas J. Efthimiou | arXiv, Published in 2012, 95 pages
51. Mathematics for Computer Scientists
    Gareth J. Janacek, Mark L. Close | BookBoon, Published in 2008, 153 pages
52. Category Theory and Functional Programming
    Mikael Vejdemo-Johansson | University of St. Andrews, Published in 2012, 99 pages
53. An Introduction to High Dimensional Knots
    Eiji Ogasa | arXiv, Published in 2013, 92 pages
54. Calculus II
    Paul Dawkins | Lamar University, Published in 2011, 380 pages
55. Residues and Duality
    Robin Hartshorne | Springer, Published in 1966, 434 pages
56. Essentials of Statistics: Exercises
    David Brink | BookBoon, Published in 2008, 58 pages
57. forall x: An Introduction to Formal Logic
    P.D. Magnus | , Published in 2008, 160 pages
58. Category Theory Lecture Notes
    Michael Barr, Charles Wells | , Published in 1999, 133 pages
59. Pluckings from the tree of Smarandache: Sequences and functions
    Charles Ashbacher | American Research Press, Published in 1998, 80 pages
60. Complex Analytic and Differential Geometry
    Jean-Pierre Demailly | Universite de Grenoble, Published in 2007, 571 pages
61. The Theory of Determinants and Their Applications
    Robert Forsyth Scott | Cambridge University Press, Published in 1904, 308 pages
62. Combinatorial and Computational Geometry
    J. E. Goodman, J. Pach, E. Welzl | Cambridge University Press, Published in 2007, 616 pages
63. Higher Mathematics for Engineers and Physicists
    Ivan S. Sokolnikoff | McGraw Hill, Published in 1941, 537 pages
64. Statistical Inference for Everyone
    Brian S Blais | Save The Broccoli Publishing, Published in 2014, 200 pages
65. Comparison Geometry
    Karsten Grove, Peter Petersen | Cambridge University Press, Published in 1997, 262 pages
66. Projective and Polar Spaces
    Peter J. Cameron | Queen Mary College, Published in 1991, 147 pages
67. Natural Operations in Differential Geometry
    Ivan Kolar, Peter W. Michor, Jan Slovak | Springer, Published in 1993, 437 pages
68. Modular Forms: A Computational Approach
    William A. Stein | American Mathematical Society, Published in 2007, 282 pages
69. Notes on Optimization
    Pravin Varaiya | Van Nostrand, Published in 1972, 140 pages
70. Real Analysis for Graduate Students: Measure and Integration Theory
    Richard F. Bass | CreateSpace, Published in 2011, 206 pages
71. Statistics, Probability, and Game Theory: papers in honor of David Blackwell
    David Blackwell, at al. | IMS, Published in 1996, 407 pages
72. Design of Comparative Experiments
    R. A. Bailey | Cambridge University Press, Published in 2008, 348 pages
73. A Course in Combinatorial Optimization
    Alexander Schrijver | University of Amsterdam, Published in 2012, 221 pages
74. Distribution Theory (Generalized Functions)
    Ivan F Wilde | , Published in 2005, 66 pages
75. Lectures on Potential Theory
    M. Brelot | Tata Institute of Fundamental Research, Published in 1967, 158 pages
76. Applied Statistics
    Mohammed A. Shayib | Bookboon, Published in 2013, 300 pages
77. Manifolds: Current Research Areas
    Paul Bracken (ed.) | InTech, Published in 2017, 158 pages
78. Bayesian Spectrum Analysis and Parameter Estimation
    G. Larry Bretthorst | Springer, Published in 1988, 220 pages
79. Essentials of Statistics
    David Brink | BookBoon, Published in 2008, 102 pages
80. Relationships, Change and Mathematical Analysis
    Roy McWeeny | Learning Development Institute, Published in 2011, 94 pages
81. College Algebra
    Carl Stitz, Jeff Zeager | , Published in 2013, 716 pages
82. Differential Equations
    Paul Dawkins | Lamar University, Published in 2011, 504 pages
83. Continuous Groups Of Transformations
    Luther Pfahler Eisenhart | Princeton University Press, Published in 1933, 319 pages
84. Introduction to Analytic Number Theory
    A.J. Hildebrand | University of Illinois, Published in 2006, 197 pages
85. Introduction to Representation Theory
    Pavel Etingof, at al. | MIT, Published in 2009, 99 pages
86. Calculus and Differential Equations
    John Avery | Learning Development Institute, Published in 2010, 137 pages
87. Statistics Review: Including a probability theory background
    | Wikipedia, Published in 2014
88. Continuous Distributions
    Leif Mejlbro | BookBoon, Published in 2009, 167 pages
89. Notes on Automorphic Functions
    Anders Thorup | Kobenhavns Universitet, Published in 1995, 186 pages
90. Theory and Applications of Ordered Fuzzy Numbers
    Piotr Prokopowicz, et al. | Springer, Published in 2017, 322 pages
91. Algebraic Invariants
    Leonard E. Dickson | J. Wiley & Sons, Published in 1914, 122 pages
92. Rotations of Vectors Via Geometric Algebra
    James A. Smith | viXra, Published in 2016, 76 pages
93. Determinants and Matrices
    R. Kochendörfer | Teubner, Published in 1961
94. An Introduction to Contemporary Mathematics
    John Hutchinson | Australian National University, Published in 2010, 295 pages
95. Cusps of Gauss Mappings
    Thomas Banchoff, Terence Gaffney, Clint McCrory | Pitman Advanced Pub. Program, Published in 1982, 88 pages
96. An Algorithm for Constructing Lyapunov Functions
    Sigurdur Freyr Hafstein | , Published in 2007, 100 pages
97. An Introduction to Geometry
    Wong Yan Loi | National University of Singapore, Published in 2009, 136 pages
98. Synthetic Geometry of Manifolds
    Anders Kock | University of Aarhus, Published in 2009, 314 pages
99. Implementing Mathematics with The Nuprl Proof Development System
    R. L. Constable, at al. | Prentice Hall, Published in 1986
100. Fractal Geometry
     Michael Frame, Benoit Mandelbrot, Nial Neger | Yale University, Published in 2009, 323 pages
101. Lecture notes on C*-algebras, Hilbert C*-modules, and quantum mechanics
     N.P. Landsman | arXiv, Published in 1998, 90 pages
102. Tunneling Through the Math Barrier
     William J. Meese | arXiv.org, Published in 2018, 187 pages
103. Course of Analytical Geometry
     Ruslan Sharipov | UFA, Published in 2011, 226 pages
104. Very Basic Noncommutative Geometry
     Masoud Khalkhali | University of Western Ontario, Published in 2004, 104 pages
105. Representations of Reductive p-adic Groups
     Fiona Murnaghan | University of Toronto, Published in 2009, 128 pages
106. Special Course in Functional Analysis: (Non-)Commutative Topology
     Ville Turunen | Aalto TKK, Published in 2008, 83 pages
107. The Axioms Of Descriptive Geometry
     Alfred North Whitehead | Cambridge University Press, Published in 1914, 96 pages
108. Linear Algebra
     Jonathan Gleason | University of California, Published in 2018, 681 pages
109. Galois Groups and Fundamental Groups
     David Meredith | San Francisco State University, Published in 1999, 89 pages
110. Metric and Topological Spaces
     T. W. Körner | University of Cambridge, Published in 2014, 109 pages
111. Algebraic and Geometric Methods in Enumerative Combinatorics
     Federico Ardila | arXiv, Published in 2014, 143 pages
112. Think Bayes: Bayesian Statistics Made Simple
     Allen B. Downey | Green Tea Press, Published in 2012, 77 pages
113. Combinatorial Theory
     Gian-Carlo Rota | , Published in 1998, 414 pages
114. Mathematical Analysis I
     Elias Zakon | The Trillia Group, Published in 2004, 367 pages
115. A defense of Columbo: A multilevel introduction to probabilistic reasoning
     G. D'Agostini | arXiv, Published in 2010, 60 pages
116. Equivariant Stable Homotopy Theory
     G. Jr. Lewis, J. P. May, M. Steinberger, J. E. McClure | Springer, Published in 1986, 538 pages
117. Hack, Hack, Who's There? A Gentle Introduction to Model Theory
     David Reid | Smashwords, Published in 2016, 273 pages
118. Everything Maths: Grade 12 Mathematics
     Neels van der Westhuizen, et al. | Siyavula, Published in 2012, 199 pages
119. Mathematical Tools for Physics
     James Nearing | Dover Publications, Published in 2010, 569 pages
120. Partial Differential Equations with Maple
     Robert Piche, Keijo Ruohonen | Tampere University of Technology, Published in 1997, 131 pages
121. Euclid's Elements
     D.E.Joyce | , Published in 1998
122. Mathematics for Algorithm and Systems Analysis
     Edward A. Bender, S. Gill Williamson | Dover Publications, Published in 2005, 256 pages
123. Manifolds of Differentiable Mappings
     Peter W. Michor | Birkhauser, Published in 1980, 165 pages
124. Blast Into Math!
     Julie Rowlett | BookBoon, Published in 2013, 215 pages
125. Hilbert Spaces and Operators on Hilbert Spaces
     Leif Mejlbro | BookBoon, Published in 2009, 109 pages
126. Basic Math Quick Reference Handbook
     Peter J. Mitas | Quick Reference Handbooks, Published in 2009, 85 pages
127. Elementary Abstract Algebra: Examples and Applications
     Justin Hill, Chris Thron | Texas A&M University, Published in 2017, 785 pages
128. Problems with and Without ... Problems!
     Florentin Smarandache | viXra, Published in 2011, 136 pages
129. The Hauptvermutung Book: A Collection of Papers on the Topology of Manifolds
     A.A. Ranicki, et al, | Springer, Published in 1996, 194 pages
130. Functional and Structured Tensor Analysis for Engineers
     R. M. Brannon | The University of Utah, Published in 2003, 323 pages
131. An Inquiry-Based Introduction to Proofs
     Jim Hefferon | Saint Michael's College, Published in 2013, 23 pages
132. Model Categories and Simplicial Methods
     Paul Goerss, Kristen Schemmerhorn | Northwestern University, Published in 2004, 46 pages
133. The Continuum and Other Types of Serial Order
     Edward V. Huntington | Dover Publications, Published in 1917, 90 pages
134. Introduction to Vectors and Tensors Volume 1: Linear and Multilinear Algebra
     Ray M. Bowen, C.-C.Wang | Springer, Published in 2008, 314 pages
135. Elementary Geometry: Practical and Theoretical
     C. Godfrey, A. W. Siddons | Cambridge University Press, Published in 1919, 438 pages
136. Multivariable Calculus: Applications and Theory
     Kenneth Kuttler | Brigham Young University, Published in 2011, 466 pages
137. Elements of Abstract and Linear Algebra
     Edwin H. Connell | , Published in 2004, 146 pages
138. Elementary Number Theory
     W W L Chen | Macquarie University, Published in 2003, 98 pages
139. Introduction to Probability
     C. M. Grinstead, J. L. Snell | American Mathematical Society, Published in 1997, 520 pages
140. Applied and Computational Linear Algebra: A First Course
     Charles L. Byrne | University of Massachusetts Lowell, Published in 2013, 504 pages
141. Multivariable Calculus
     Wong Yan Loi | National University of Singapore, Published in 2013, 105 pages
142. Curves and Surfaces in Geometric Modeling: Theory and Algorithms
     Jean Gallier | Morgan Kaufmann, Published in 1999, 502 pages
143. Intuitive Infinitesimal Calculus
     Viktor Blasjo | Intellectual Mathematics, Published in 2015, 98 pages
144. Immersive Linear Algebra
     J. Strom, K. Astrom, T. Akenine-Moller | immersivemath, Published in 2017, 205 pages
145. Practical Foundations of Mathematics
     Paul Taylor | Cambridge University Press, Published in 1999, 588 pages
146. Linear Systems Theory and Introductory Algebraic Geometry
     Robert Hermann | Math Sci Press, Published in 1974, 282 pages
147. Course of Linear Algebra and Multidimensional Geometry
     Ruslan Sharipov | Samizdat Press, Published in 1996, 143 pages
148. Axiomatic Set Theory I
     A. C. Walczak-Typke | , Published in 2009, 128 pages
149. A Basic Course in Applied Mathematics
     J. Bystrom, L. Persson, F. Stromberg | Lulea University of Technology, Published in 2010
150. Elementary Trigonometry
     W. E. Paterson | Clarendon Press, Published in 1911, 213 pages
151. Fundamentals of High School Mathematics
     Harold O. Rugg, John R. Clark | Yonkers-on-Hudson, N.Y., Published in 1918, 296 pages
152. Discrete Mathematics with Algorithms
     M. O. Albertson, J. P. Hutchinson | J. Wiley, Published in 1988, 560 pages
153. Foundations of Infinitesimal Calculus
     K.D. Stroyan | Academic Press, Inc., Published in 1997, 182 pages
154. Dynamics in One Complex Variable
     John Milnor | Princeton University Press, Published in 1991, 146 pages
155. Easy Mathematics: Arithmetic and Algebra for General Readers
     Oliver Lodge | The Macmillan Company, Published in 1910, 466 pages
156. Actual Causality
     Joseph Y. Halpern | The MIT Press, Published in 2016, 240 pages
157. Probability and Statistics: A Course for Physicists and Engineers
     Arak M. Mathai, Hans J. Haubold | De Gruyter Open, Published in 2017, 582 pages
158. Practical Mathematics for Home Study
     Claude Irwin Palmer | McGraw-Hill, Published in 1919, 528 pages
159. The Pythagorean Theorem: Crown Jewel of Mathematics
     John C. Sparks | AuthorHouse, Published in 2008, 190 pages
160. Mathematics of Modality
     Robert Goldblatt | CSLI Publications, Published in 1993, 288 pages
161. Notes on Discrete Mathematics
     Miguel A. Lerma | , Published in 2005, 154 pages
162. Modeling, Functions, and Graphs: Algebra for College Students
     Katherine Yoshiwara | Los Angeles Pierce College, Published in 2017, 344 pages
163. Tensor Calculus
     Taha Sochi | viXra, Published in 2016, 91 pages
164. Introduction to Stochastic Analysis
     Michael Roeckner | Universitaet Bielefeld, Published in 2011, 98 pages
165. Inverse Problems and Applications: Inside Out II
     Gunther Uhlmann (ed.) | Cambridge University Press, Published in 2013, 580 pages
166. Intersection Graphs: An Introduction
     Madhumangal Pal | arXiv, Published in 2014, 49 pages
167. Popular Mathematics
     Robert Mudie | Orr and Smith, Published in 1836, 523 pages
168. Geometry Formulas and Facts
     Silvio Levy | CRC Press, Published in 1995
169. Hyperbolic Geometry
     J.W. Cannon, W.J. Floyd, R. Kenyon, W.R. Parry | MSRI, Published in 1997, 57 pages
170. Statistical Tools for Economists
     Daniel McFadden | University of California, Berkeley, Published in 2001
171. Mathematical Reasoning: Writing and Proof
     Ted Sundstrom | Pearson Education, Inc., Published in 2013, 591 pages
172. Foundations of Constructive Probability Theory
     Yuen-Kwok Chan | arXiv.org, Published in 2019, 517 pages
173. The World of Mathematics
     Philipp Legner | Mathigon, Published in 2012
174. A Second Course in Elementary Ordinary Differential Equations
     Marcel B. Finan | Arkansas Tech University, Published in 2006, 201 pages
175. Lectures on Elliptic Partial Differential Equations
     J.L. Lions | Tata Institute of Fundamental Research, Published in 1957, 121 pages
176. Lectures on Linear Algebra and Matrices
     G. Donald Allen | Texas A&M University, Published in 2003, 238 pages
177. Encyclopedia of Mathematics
     | Kluwer Academic Publishers, Published in 2002, 1202 pages
178. Practical Mathematics
     A.H. Bell | Blackie And Son Limited, Published in 1919, 356 pages
179. Algebraic Topology
     Allen Hatcher | Cambridge University Press, Published in 2001, 559 pages
180. A Short Course on Approximation Theory
     N. L. Carothers | Bowling Green State University, Published in 2009, 159 pages
181. Mathematics and Physics of Emerging Biomedical Imaging
     National Research Council | National Academies Press, Published in 1996, 238 pages
182. Graph Theory With Applications
     J.A. Bondy and U.S.R. Murty | Elsevier Science Ltd, Published in 1976, 270 pages
183. E 'Infinite' Ring Spaces and E 'Infinite' Ring Spectra
     J. P. May | Springer, Published in 1977, 280 pages
184. Introduction to the Numerical Integration of PDEs
     B. Piette | University of Durham, Published in 2004, 89 pages
185. Symbolic Logic
     Lewis Carroll | Macmillan and co, Published in 1897
186. Graduate Algebra
     Leonard Evens | Northwestern University, Published in 1999, 160 pages
187. Lectures notes on compact Riemann surfaces
     Bertrand Eynard | arXiv.org, Published in 2018, 119 pages
188. Mathematical Formula Handbook
     Wu-ting Tsai | National Taiwan University, Published in 2012, 28 pages
189. Mathematical Essays and Recreations
     Hermann Schubert | The Open Court Publishing, Published in 1898, 159 pages
190. Linear Algebra
     Paul Dawkins | Lamar University, Published in 2011, 331 pages
191. The Elementary Properties of the Elliptic Functions
     Alfred Cardew Dixon | Macmillan, Published in 1894, 164 pages
192. The Theory of Matrices
     C.C. MacDuffee | Chelsea, Published in 1956, 110 pages
193. A Modern Course on Curves and Surfaces
     Richard S. Palais | virtualmathmuseum.org, Published in 2003, 163 pages
194. On 2D Inverse Problems
     | Wikibooks, Published in 2013
195. Introduction to Groups, Invariants and Particles
     Frank W. K. Firk | Orange Grove Texts Plus, Published in 2000, 162 pages
196. Concepts and Applications of Inferential Statistics
     Richard Lowry | , Published in 2008, 366 pages
197. Discrepancy Theory
     William Chen | Macquarie University, Published in 2012, 99 pages
198. A Mathematicians Miscellany
     J. E. Littlewood | Methuen And Company Limited, Published in 1953, 152 pages
199. Numbers and Symbols: From Counting to Abstract Algebras
     Roy McWeeny | Learning Development Institute, Published in 2007, 53 pages
200. Real Functions in One Variable: Calculus 1a
     Leif Mejlbro | BookBoon, Published in 2006, 146 pages
201. High-dimensional Knot Theory
     Andrew Ranicki | Springer, Published in 1998, 693 pages
202. Introduction to Algebraic Topology and Algebraic Geometry
     U. Bruzzo | , Published in 2008, 138 pages
203. Strange Attractors: Creating Patterns in Chaos
     Julien C. Sprott | M & T Books, Published in 2000, 591 pages
204. Decision Making and Productivity Measurement
     Dariush Khezrimotlagh | arXiv, Published in 2016, 214 pages
205. Lectures on Discrete and Polyhedral Geometry
     Igor Pak | UCLA, Published in 2008, 428 pages
206. Unfolding the Labyrinth: Open Problems in Mathematics, Physics, Astrophysics
     Florentin Smarandache, at al. | arXiv, Published in 2006, 139 pages
207. Recreations in Mathematics
     H E. Licks | D. Van Nostrand Company, Published in 1917, 163 pages
208. A First Course in Elementary Differential Equations
     Marcel B. Finan | Arkansas Tech University, Published in 2006, 213 pages
209. Hopf Algebras, Quantum Groups and Yang-Baxter Equations
     Florin Felix Nichita (ed.) | MDPI AG, Published in 2019, 240 pages
210. Introduction to Twisted Commutative Algebras
     Steven V Sam, Andrew Snowden | arXiv, Published in 2012, 56 pages
211. Algebraic and Geometric Topology
     Andrew Ranicki, Norman Levitt, Frank Quinn | Springer, Published in 1985, 436 pages
212. Statistics Beyond the Absolute Basics
     Ivan Lowe | scientificlanguage.com, Published in 2018, 182 pages
213. Hopf Algebras in General and in Combinatorial Physics: a practical introduction
     G.H.E. Duchamp, et al. | arXiv, Published in 2008, 40 pages
214. Revealing Statistical Principles
     J.K. Lindsey | Hodder Education Publishers, Published in 1999, 225 pages
215. A Concise Geometry
     Clement V. Durell | G. Bell And Sons Limited., Published in 1921, 333 pages
216. The Axiomatic Method
     L. Henkin, P. Suppes, A. Tarski | North Holland Publishing Company, Published in 1959, 508 pages
217. Basic Concepts of Mathematics
     Elias Zakon | The Trillia Group, Published in 2007, 208 pages
218. Introduction to Partial Differential Equations
     Valeriy Serov | University of Oulu, Published in 2011, 122 pages
219. Mathematical Logic
     Stephen G. Simpson | Pennsylvania State University, Published in 2013, 128 pages
220. Discrete Mathematics
     | Wikibooks, Published in 2012
221. Ordinary Differential Equations and Dynamical Systems
     Gerald Teschl | Universitaet Wien, Published in 2009, 297 pages
222. Lectures on Algebraic Groups
     Alexander Kleshchev | University of Oregon, Published in 2005, 166 pages
223. Causal Inference
     Miguel A. Hernan, James M. Robins | Chapman & Hall/CRC, Published in 2015, 352 pages
224. Calculus Volume 3
     | OpenStax, Published in 2016, 1032 pages
225. Graphical Calculus
     Arthur Henry Barker | Longmans, Green, and Co., Published in 1896, 188 pages
226. Homological Methods in Noncommutative Geometry
     D. Kaledin | , Published in 2008, 77 pages
227. Differential Equations and Linear Algebra
     Simon J.A. Malham | Heriot-Watt University, Published in 2010, 95 pages
228. Introduction to Bimatrices
     W. B. V. Kandasamy, F. Smarandache, K. Ilanthenral | arXiv, Published in 2005, 181 pages
229. Graph Theory
     Reinhard Diestel | Springer, Published in 2005, 422 pages
230. Differential and Integral Calculus
     C. E. Love, E. D. Rainville | The MacMillan Company, Published in 1916, 369 pages
231. Category Theory
     | Wikibooks, Published in 2010
232. Plane Geometry
     George Wentworth, David E. Smith | Ginn and Company, Published in 1913, 304 pages
233. Probability and Mathematical Statistics
     Prasanna Sahoo | University of Louisville, Published in 2008, 703 pages
234. Analytic Geometry
     L. P. Siceloff, G. Wentworth, D. E. Smith | Ginn and Company, Published in 1922, 296 pages
235. Notes on Algebraic Structures
     Peter J. Cameron | Queen Mary, University of London, Published in 2006, 102 pages
236. Lectures on Semi-group Theory and its Application to Cauchy's Problem in Partial Differential Equations
     K. Yosida | Tata Institute of Fundamental Research, Published in 1957, 160 pages
237. Practical Plane and Solid Geometry for Advanced Students
     J. Harrison, G.A. Baxandall | Macmillan, Published in 1899, 584 pages
238. Numerical Analysis I
     Mark Embree | Rice University, Published in 2012, 207 pages
239. An introduction to Noncommutative Projective Geometry
     D. Rogalski | arXiv, Published in 2014, 55 pages
240. An Introduction to Riemannian Geometry
     Sigmundur Gudmundsson | Lund University, Published in 2010, 106 pages
241. Lectures on Numerical Methods in Bifurcation Problems
     H.B. Keller | Tata Institute Of Fundamental Research, Published in 1986, 140 pages
242. Higher-Dimensional Categories: an illustrated guide book
     Eugenia Cheng, Aaron Lauda | University of Sheffield, Published in 2004, 182 pages
243. An introductory course in differential geometry and the Atiyah-Singer index theorem
     Paul Loya | Binghamton University, Published in 2005, 137 pages
244. The Basics of Financial Mathematics
     Richard F. Bass | , Published in 2003, 106 pages
245. Linear Mathematics In Infinite Dimensions
     U. H. Gerlach | The Ohio State University, Published in 2015, 507 pages
246. Lectures on Differential Geometry
     John Douglas Moore | University of California, Published in 2009, 263 pages
247. Transmutations and Applications: a survey
     Sergei M. Sitnik | arXiv, Published in 2010, 141 pages
248. A Primer on Homotopy Colimits
     Daniel Dugger | University of Oregon, Published in 2008, 72 pages
249. An Introduction to Nonassociative Algebras
     Richard D. Schafer | Project Gutenberg, Published in 2008, 81 pages
250. Random Matrix Models and Their Applications
     Pavel Bleher, Alexander Its | Cambridge University Press, Published in 2001, 438 pages
251. Lectures on Noise Sensitivity and Percolation
     Christophe Garban, Jeffrey E. Steif | arXiv, Published in 2011, 150 pages
252. Real Analysis
     Martin Smith-Martinez, et al. | Wikibooks, Published in 2013
253. Multivector Differential Calculus
     Eckhard Hitzer | arXiv, Published in 2013, 43 pages
254. A Friendly Introduction to Mathematical Logic
     Christopher C. Leary, Lars Kristiansen | Milne Library Publishing, Published in 2015, 380 pages
255. Introduction to Fortran 95 and Numerical Computing
     Adrian Sandu | Virginia Tech, Published in 2001, 215 pages
256. Category Theory in Context
     Emily Riehl | Dover Publications, Published in 2016, 258 pages
257. Probability, Geometry and Integrable Systems
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