Collection

Hidden Corridor, Constantin Puzzle

MoMath Stylus Pen

"Undiluted Hocus Pocus: The Autobiography of Martin Gardner"

Euler's Gem by David S. Richeson

The Princeton Companion to Mathematics edited by Tim Gowers

The Irrationals: A Story of the Numbers You Can't Count On

The Calculus of Friendship: What a Teacher and a Student Learned about Life While Corresponding about Math by Steven Strogatz

The Housekeeper and the Professor by Yoko Ogawa

Will Shortz Presents Math Masters Sudoku: 150 Puzzles for Clever Kids

What's Math Got to Do with It? How Parents and Teachers Can Help Children Learn to Love Their Least Favorite Subject by Jo Boaler

A counting book

Perplexing Puzzles and Tantalizing Teasers by Martin Gardner