DOT TO DOT For Adults Fun and Challenging Join the Dots: The mindful way to relax and unwind

Are You a Math Genius? The Inventor's Book of Calculation Games - For Brilliant Thinkers: 180 Pages of Mathematical Creativity for Ages 13 + ... Thinking Tree Books - Homeschooling Math)

The Adventures of Penrose the Mathematical Cat

Let's Play Math: How Families Can Learn Math Together and Enjoy It

Winning Ways for Your Mathematical Plays (AK Peters/CRC Recreational Mathematics Series)

Memory Games for Seniors: 701 Fun, Memory-Boosting and Stress-Relieving Puzzles (XXL Large Print)

The Symmetries of Things

KENKEN: LIM-OPS, NO-OPS AND TWIST!: 180 6 X 6 PUZZLES THAT MAKE YOU SMARTER (Kenken: Math & Logic Puzzles That Will Make You Smarter!)

Fun-Schooling Math Mysteries - Add, Subtract, Multiply, Divide: Ages 6-10 ~ Create Your Own Number Stories & Master Your Math Facts! (Fun-Schooling With Thinking Tree Books - Homeschooling Math)

Unmatched: 50 Years of Supercomputing (Chapman & Hall/CRC Computational Science)