Two (2) cassette sets by motivational/self-analysis author, Wayne Dyer. Both Nightingale Conant productions. The Awakened Life - 1990 - the basics of your own mind control and benefits - 6 double sided cassettes;   The Secrets of Manifesting Your Destiny - 1996 - his 9 principles on mental energy - 6 double sided cassettes plus bonus cassette on quick action steps to take. No matter how well of poorly things are going for an individual, self development exercises are often useful for  reinforcing the positives and eliminating the negatives. Dyer is a master of technique. Media Mail $ 4.50.