Public Domain Ebooks Collection
📐 Mathematics
History • Philosophy • Recreation • General Interest
🧮 Algebra & Combinatorics
School Algebra • Abstract Algebra • Combinatorics
📊 Calculus & Geometry
Calculus • Analysis • Differential Equations • Geometry
🧠 Logic & Probability
Logic • Philosophy • Probability
⚛️ Physics
Foundational Works in Physics
📘 Mathematics — History & General Interest
📖 A History of Mathematics
Author: Florian Cajori
A classic survey of mathematical development across cultures and centuries.
Download📖 On the Study and Difficulties of Mathematics
Author: Augustus De Morgan
Insightful essays on the teaching, learning, and philosophy of mathematics.
Download📖 The Evanston Colloquium
Author: Felix Klein (1893)
Lectures bridging geometry, analysis, and pedagogy from a renowned mathematician.
Download📖 Science and Hypothesis
Author: Henri Poincaré
Philosophical essays on science, logic, and the foundations of mathematics.
Download📖 A Scrap-Book of Elementary Mathematics
Author: William Frank White
A delightful miscellany of puzzles, curiosities, and insights into elementary math.
Download🔢 Algebra & Combinatorics
📖 Theory of Groups of Finite Order
Author: William Burnside
A foundational work in abstract algebra and group theory.
Read / Download📖 First Course in the Theory of Equations
Author: Leonard Eugene Dickson
Covers algebraic equations with clarity by one of America’s great algebraists.
Read / Download📖 Oeuvres mathématiques d’Évariste Galois
Author: Évariste Galois
Collected works of Galois, foundational for group theory and modern algebra.
Read / Download📖 Lectures on Elementary Mathematics
Author: Joseph Louis Lagrange
Gentle introduction to math topics by a towering historical figure.
Download📖 Topics on Tournaments
Author: John W. Moon
Introductory combinatorics text focusing on directed graphs and tournaments.
Read / Download📖 The First Steps in Algebra
Author: George Albert Wentworth
Classic schoolbook introducing algebra fundamentals clearly.
Read / Download🧮 Calculus, Analysis & Geometry
📖 General Investigations of Curved Surfaces
Author: Carl Friedrich Gauss
Foundational work in differential geometry from the Prince of Mathematics.
Read / Download📖 Four Lectures on Mathematics
Author: Jacques Hadamard
Clear, philosophical reflections on mathematical invention and rigor.
Download📖 Orders of Infinity
Author: G.H. Hardy
A treatise on Du Bois-Reymond’s infinitary calculus and asymptotic analysis.
Read / Download📖 A Course of Pure Mathematics
Author: G.H. Hardy
A rigorous introduction to real analysis, calculus, and mathematical thinking.
Read / Download📖 Riemann’s Theory of Algebraic Functions
Author: Felix Klein
Explores complex analysis and Riemann surfaces in Klein’s elegant style.
Read / Download📖 Elementary Illustrations of the Calculus
Author: Augustus De Morgan
Introductory explanations of differential and integral calculus with diagrams.
Read / Download📖 Calculus Made Easy
Author: Sylvanus P. Thompson
The most famous and friendly introduction to calculus — still readable today.
Download🧠 Logic, Philosophy & Probability
📖 The Mathematical Analysis of Logic
Author: George Boole
The foundation of symbolic logic and Boolean algebra — a mathematical revolution.
Download📖 A Treatise on Probability
Author: J.M. Keynes
A philosophical treatment of uncertainty and probability before Bayesian formalism.
Read / Download📖 Introduction to Mathematical Philosophy
Author: Bertrand Russell
An accessible guide to logic, set theory, and the structure of mathematics.
Download📖 The Logic of Chance
Author: John Venn
One of the earliest formalizations of probabilistic reasoning and statistical logic.
Read / Download📖 An Introduction to Mathematics
Author: Alfred North Whitehead
A lucid overview of the scope and meaning of mathematics by a co-author of *Principia Mathematica*.
Download⚛️ Foundational Works in Physics
📖 Space, Time and Gravitation
Author: Arthur S. Eddington
Elegant exposition of general relativity for a wide audience, by one of its earliest champions.
Download📖 Relativity: The Special and General Theory
Author: Albert Einstein
Einstein’s own introduction to his theory of relativity, written for non-specialists.
Download📖 The Meaning of Relativity
Author: Albert Einstein
Einstein’s Princeton lectures explaining the mathematical structure of relativity.
Read / Download📖 The Theory of Heat Radiation
Author: Max Planck
A key text in the birth of quantum theory by the originator of Planck’s constant.
Read / Download📖 Space—Time—Matter
Author: Hermann Weyl
A masterpiece blending geometry, physics, and philosophy from a mathematical visionary.
Read / Download📖 The Mathematical Theory of Relativity
Author: Arthur S. Eddington
Technical and geometrical formulation of relativity — one of the earliest comprehensive treatments.
Read / Download