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The Number Devil: A Mathematical Adventure

Further Adventures of Penrose the Mathematical Cat

Here's Looking at Euclid: A Surprising Excursion Through the Astonishing World of Math

My Best Mathematical and Logic Puzzles (Dover Recreational Math)

The Adventures of Penrose the Mathematical Cat

Introducing Quantum Theory: A Graphic Guide (Introducing...)

Blockchain Basics: A Non-Technical Introduction in 25 Steps

Spy School Secret Service

Spy Ski School (Spy School)

Do the Math: Secrets, Lies, and Algebra