THE MASTER KEY SYSTEM is composed of 24 step-by- step chapters that teach you, in a direct manner, how to unlock the greater powers of your mind for success. This book can be read from cover to cover or readers can open to random pages for brief, practical advice on how to produce greater prosperity and success. Haanel's tough business sense combined with his intense understanding of the higher principles of life make this work useful for readers everywhere.This classic book served as the inspiration for the best seller The Secret.