«The Master Key System» by Charles F. Haanel

The Master Key System, along with “The Science of Getting Rich” is the source of Rhonda Byrne's inspiration for the book and film “The Secret.” Originally published in 1912 as a correspondence course, it teaches that everything around us was first developed as a thought. That means that thought, is the powerful catalyst towards turning any idea into a reality. Using thought as the manifestation of creative energy, The Master Key System will show you how to use the power of these thoughts to realize your dreams.