Complete Text. Self Mastery Through Conscious Autosuggestion (full original title). Emile Cou, a French psychologist and pharmacist, introduced a new method of healing and self-improvement using the power of auto-suggestion. Self Mastery details his method and explains how the whole concept of optimistic auto-suggestion works and how to use it for your own betterment. Discover how his methods can help you, just as they have helped millions of others.Coue, Emile is the author of 'Self Mastery', published 2007 under ISBN 9780979415494 and ISBN 0979415497.