The Little Book of Big Mind BendersSmart, additive, challenging, funthis mind expanding collection of over 450 full color spatial puzzles, number challenges, wordplay, visual conundrums, and more is like a stealth boot camp for the brain. Both sides, left and right. The puzzles are color coded by type and distributed throughout the book in mixed fashion, for a cross training effect. Test your knack for patterns with Perfect Match, then jump into logic's deep end in Go Figureall for a