Erwin Brecher Related books IQ Booster: Improve Your Iq Performance Dramatically Sterling Pub Co Inc • 1996 Lateral Thinking Puzzles Andre Deutsch • 2010 Surprising Science Puzzles Sterling Pub Co Inc Tantalising Brain Teasers Carlton Books, Limited • 2019 The I Q Booster Ebury Press • 1996 The Ultimate Book of Puzzles, Mathematical Diversions, and Brainteasers: A Definitive Collection of the Best Puzzles Ever Devised St Martins Pr • 1996 World Class Puzzles Sterling Pub Co Inc • 1996