Title: Math Games with Bad Drawings: 75 1/4 Simple, Challenging, Go-Anywhere Games-And Why They Matter, Author: Ben Orlin
Title: Mrs. Perkins's Electric Quilt: And Other Intriguing Stories of Mathematical Physics, Author: Paul J. Nahin
Title: Amusements in Mathematics, Author: Henry Ernest Dudeney
Title: Train Your Brain: A Year's Worth of Puzzles, Author: George Gratzer