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)

Apartness and Uniformity: A Constructive Development

Advanced Abacus: Theory and Practice

Techniques of Constructive Analysis

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

Ramanujan's Lost Notebook: Part I, Part 1

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