Brain Power The Book of "Brain Power" gives Expert guidance to help you useyour intelligence to the optimum. The muscles of the body can bestrengthened by exercise. The same is true of the mind. Onesintelligence can be increased with study and concentration. In this book there are 30 tests that will help you strengthenand increase your brain power. These books are written byprofessionals and provide expert guidance to help you evaluateyourself, and enrich and fortify your life.