Pocket IQ Brain Trainer Visual Puzzles Author:Erwin Brecher IQ tests present a superb challenge to the puzzle-lover. They challenge your verbal and numerical skills, as well as the way you deal with objects, signs, symbols and illustrations (visuo-spatial). They are also great fun! "Pocket IQ Brain Trainer: Visual & Spatial" has been specially designed to help you identify your weaker puzzle-solving area... more »s and to improve them. It contains hundreds of IQ test puzzles and full commentary on all aspects of the tests and all the puzzles in the book.« less