BrainBusting Bonanza - Rolf Heimann - Rolf''s Brain-Busting Bonanza Created by a best-selling Australian puzzle artist, this huge compendium is an amazing combination of comic book art and mind-bending stumpers. Kids will love the logical thinking exercises, mazes and visual puzzles plus the great illustrations; in the mix you you'll find wonderful activities that build abstract thinking and problem-solving. For... more » ages 8 to adult.« less