Charles Haanel’s THE MASTER KEY SYSTEM represents of the first, if not the first, book released under the “New Thought” genre. It is the compilation of a 24 part correspondence course delivered on a weekly basis to a wealthy clientele. The material was subsequently compiled and released to the general public as a book in 1919.
A brief biography of Charles Haanel is available on this site at “Charles Haanel“, and a comprehensive summary of the material contained within THE MASTER KEY SYSTEM can be found at the upper left of that same page.
This and many other classic books in the “Personal Development” genre are available on the Integrated Success Program web-site.
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