Welcome to IOU Digital Library

Develop a six-pack brain with more than 301 games, puzzles, and exercises designed to sharpen concentration, memory, attention span and mental agility. Think of it as a gym-workout for your brain — the puzzles warm up your focus, the exercises bulk up your memory power, and the overall goal is to keep the mind running at optimum level and stave off mental decline.

no reviews

245: $a: Beef Up Your Brain: The Big Book of 301 Brain-Building Exercises, Puzzles and Games!
245: $b:
082: $a:
100: $a: Michel Noir & Bernard Croisile
650: $a: Psychology
250: $a:
440: $v:
250: $b: Mc Graw Hill
250: $c: 2009
020: $a: 978-0-07-1700580
300: $a: 336