Collection

How both logical and emotional reasoning can help us live better in our post-truth world

How do you catch a thief who isn’t there? Ruby discovers the perils of throwing caution to the wind as she embarks on her fourth adventure.

Almost 300 other mathematical puzzles appear in this original collection, devised by world-renowned mathematicians, puzzle creators, and devoted puzzle lovers.

Mind and Matter

Hardcover | 48 pages

Magical Mathematics (Paperback)

400 Puzzles

A Doubter's Almanac (Fiction)

Cast Cylinder - Hanayama Level 4

Using a unique teaching tool designed to motivate kids to learn, this book visually explores the concepts of factoring and the role of prime and composite numbers.

Manga Guide to Calculus, The

Hitchhiker's Guide to the Galaxy, The