Originally published as a 24-week correspondence course, The Master Key System is a step by step process for achieving the life and success that you’ve always desired. Using the creative power of thought, Charles F. Haanel guides readers to understand and harness their own mental power in order to manifest the life they wish to experience. Each of the 24 lessons includes study questions and responses to deepen your understanding of the material. Practical and accessible, The Master Key System is a transformative guide to living a fulfilling, successful life. The Master Key System is part of the GPS (Good, Practical Simple) Guides to Life series, which aims to introduce a new audience of readers to the life changing writings of past generations. This new edition also includes the bonus book Mental Chemistry also by Haanel.

Joining the ranks of Tarcher's runaway editions of "Think and Grow Rich" by Napoleon Hill, "Public Speaking for Success" by Dale Carnegie, and "The Science of Getting Rich" by Wallace D. Wattles, here are three landmark guides to a life of prosperity-now restored to print in beautiful, signature volumes.
- Newly discovered by fans of "The Secret," the metaphysical writer Wallace D. Wattles distills the rules of real power and personal achievement in his slender, immensely practical "The Science of Being Great"-the companion work to "The Science of Getting Rich."
- Publisher Robert Collier taught millions of people how to achieve more, attain more, and live more-all by tapping the incredible faculties of the human mind. His leading book, "The Secret of the Ages," is available once again in its authoritative, revised edition.
- Businessman Charles F. Haanel made a meticulous study of the "Law of Attraction" in "The Master Key System"-a step-by-step guide to activating the principle of mental power and a core inspiration behind "The Secret."
Each of these volumes features reset and redesigned interiors, rough-front pages, and elegant French flaps, and is published at an affordable price.
Here are the cornerstone works of self-development-perfect for today's generation of readers.

The Master Key System is a personal development book that was originally published as a correspondence course in 1912. Along with "The Science of Getting Rich," by Wallace D. Wattles, the Master Key System is the source of Rhonda Byrne's inspiration for the book and the film "The Secret."