How to Solve It: A New Aspect of Mathematical Method

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

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

Lecture Notes on Graph Theory: Lecture Notes on Graph Theory

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

MATHEMAICS FORMULAE

Problems and Solutions for Integer and Combinatorial Optimization: Building Skills in Discrete Optimization

536 Puzzles and Curious Problems

Foundations and Fundamental Concepts of Mathematics

Logic: A Very Short Introduction: Edition 2

That's Maths: The Mathematical Magic in Everyday Life

The Canterbury Puzzles and Other Curious Problems

A Beginner's Guide to Mathematical Logic