The "30 minute mental workout".here is a new kind of workout that will give your customers a new lease on their relationships and their lives. It's the perfect book for the busy professional. Self Analysis contains easy ...The "30 minute mental workout".here is a new kind of workout that will give your customers a new lease on their relationships and their lives. It's the perfect book for the busy professional. Self Analysis contains easy to learn techniques which can be used daily to: - improve memory - eliminate stress - enhance reaction time - improve survival potential.