LEARN WHILE YOU SLEEP: A Remarkable New Way to Learn & Remember
Publisher: Avon Books

Description:

Introduces an amazing technique that lets the mind absorb information while the body is at rest. Scientifically researched in laboratories and homes throughout the world, listening to learning tapes during sleeping hours has proved to be a highly effective way for people of all ages to realize their full learning potential. Includes all the step-by-step information you need for effective sleep learning at home.

To order:  Amazon