Book excerpt: Exercise your brain with hundreds of colorful, mind-blowing photo puzzles Sudoku, crosswords, word searches, and other brainteasers are wildly popular these days-not just because they're fun, but also because they stimulate the mind and keep it active and healthy. Now there's a new puzzle guide guaranteed to hone your powers of observation and perception. Picture Puzzles For Dummies features 100 full-color puzzles that use sight to enhance your brain capacity as well as keep you amused for hours! This portable guide features 100 fun and challenging photo puzzles Includes "spot the changes" puzzles, "cut-ups", "which one of these is not like the others", and a collection of bewildering "black and white" puzzles Visual puzzles have been proven to strengthen memory, attention span, and creativity, as well as amplify logic, vocabulary, and deduction skills. Whether you're completely new to puzzles or you're a puzzle fanatic, Picture Puzzles For Dummies is the perfect guide to keep you entertained.