Number Theory: A Very Short Introduction

How to Solve It: A New Aspect of Mathematical Method

Four Colors Suffice: How the Map Problem Was Solved - Revised Color Edition

Logically Fallacious: The Ultimate Collection of Over 300 Logical Fallacies (Academic Edition)

Euler's Pioneering Equation: The most beautiful theorem in mathematics

Mathematics for the Physical Sciences

An Illustrated Book of Bad Arguments: Learn the Lost Art of Making Sense (Bad Arguments)

Combinatorics: A Very Short Introduction

The (Mis)Behaviour of Markets: A Fractal View of Risk, Ruin and Reward

Lewis Carroll in Numberland: His Fantastical Mathematical Logical Life

A Beginner's Guide to Constructing the Universe: The Mathematical Archetypes of Nature, Art, and Science

An Introductory Course in Elementary Number Theory

The Great Mathematicians

103 Trigonometry Problems: From the Training of the USA IMO Team

Fast Math: Learn the Secrets of Mental Math: By Using Vedic Math and Other Math Tricks to Perform Mental Calculations from Multiplication to Percentages without Calculators

Mathematical Conversations: Selections from The Mathematical Intelligencer

Graph Theory in America: The First Hundred Years

Notebooks of Srinivasa Ramanujan: Volume II, Volume 2