Revised edition of a self help book that has gone through edition after edition over a decade, proving its practical value by the acid test of use. Read for the first time now, it seems rather elementary and dated and obvious. Perhaps that is its secret- that it is simple enough, down to earth enough, in concept and techniques, to meet needs at not too high a level. The approach to increasing one's own mental potentials includes such factors as habit formation, increasing reading ability, developing concentration, improving memory, extending the realm of imagination, developing reasoning faculties, extending interests, developing forms of expression. The importance of health, both mental and physical, in stressed --and the advice and suggestions are soundly reasoned.