Author(s): Powers, Melvin
Summary
Two Techniques of Reaching and Influencing the Subsconscious[sic]
Third Edition
References
“‘THOUGHT of Using Sleep for Learning, Self-Improvement?’ Fascinating science explained: ‘Mental-Power Through Sleep-Suggestion,’ $1. Melvin Powers, 1324 Wilshire, Los Angeles 17P, Calif.”
– Popular Mechanics, May 1952