With a subtitle of Tapping the Power of Music to Heal the Body, Strengthen the Mind, and Unlock the Creative Spirit, the casual reader might jokingly ask if the book could also improve chances for world peace, bring free and open elections to third world countries, and give your wash whiter whites and brighter brights. Don Campbell"s premise is, however, reasonably straightforward: he asserts that the kind of noise to which one is exposed can have important effects on mental and bodily health. As a trial, try protecting your hearing for a few days from the continuous barrage of noise in a typical urban environment; it really does seem to improve one"s attitude and fatigue levels. Where Campbell"s ideas become more provocative is in the realm of music. Supported by much anecdotal evidence, he proposes that Classical music with a big "C" (the music of Mozart"s period) can reach out to those who are mentally isolated from their fellows, like the autistic, and can help infants react and think better. (Will prenatal music classes be the next big trend for yuppie babies?) In addition, the music of Mozart contributes to the improved functioning of the higher cerebellar functions, including the ability to deal with logical and mathematical concepts, while contemporary rock actually decreases mental acuity.