How to Solve It: A New Aspect of Mathematical Method

Short Tricks of Math

Notes on Set Theory: Edition 2

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)

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

Multiagent Systems: Algorithmic, Game-Theoretic, and Logical Foundations

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

Puzzles of Reason: Journey into Logic

Topos Theory

On Formally Undecidable Propositions of Principia Mathematica and Related Systems