The Mozart effect was discovered by Dr. Gordon Shaw following a series of sophisticated experiments designed to examine how the brain works. Since the original findings were presented in 1993, the Mozart effect phenomenon has been widely discussed in both the scientific community and the general media and participants improved their scores in spatial-temporal tests after listening to one of Mozart's piano sonatas. Spatial-temporal agility is an important guide to mathematical abiity and aptitude. The original study has prompted further interest in research to explore the relationship between music, intelligence and learning. In this book, Dr. Shaw presents key information from his original research, plus the latest scientific findings on the effects of music on reasoning from his own research and that of other scientists around the world. Most astonishingly, results from playing a particular piece of Mozart, the first movement of Sonata for Two Pianos in D major have all been positive. But there is much research still to be done.