A Beginner's Guide to Mathematical Logic

How to Solve It: A New Aspect of Mathematical Method

Forever Undecided

Short Tricks of Math

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

The Gödelian Puzzle Book: Puzzles, Paradoxes and Proofs

The Book on Games of Chance: The 16th-Century Treatise on Probability

Reflections: The Magic, Music And Mathematics Of Raymond Smullyan

Origami Design Secrets: Mathematical Methods for an Ancient Art, Second Edition, Edition 2

A Beginner's Further Guide To Mathematical Logic

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

Short-Cut Math

My Best Mathematical and Logic Puzzles

To Mock a Mocking Bird

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

The Riddle of Scheherazade: And Other Amazing Puzzles, Ancient and Modern

Math Storm Olympiad Problems

First-Order Logic