We love math and we love books. Here are some of our favorites. 


Younger students

Beast Academy

a project from the Art of Problem Solving for kids in grades 2-5

The Number Devil

a kid who hates math discovers the wonder of numbers


The Adventures of Penrose the Mathematical Cat

"Penrose, a cat with a knack for math, takes children on an adventurous tour of mathematical concepts from fractals to infinity."


Mathematical Olympiads for Elementary and Middle Schools

a full slate of books for problem solvers 


Older students

Art of Problem Solving

a mathematics curriculum designed for outstanding students in grades 6-12


Bridge to Higher Mathematics

the latest book by Sam Vandervelde, our Dean of Mathematics at Proof School, is offered as a free download


Books by Ross Honsberger

the author of many books on elementary and recreational mathematics is also known for his expositions of problems at the IMO 


Books by Martin Gardner

the mathematician, philosopher, and lover of magic is the author of a full library of books


Want even more recommendations?