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".

About the Author

Charles F. Haanel (1866-1949) used the concepts and methods found in

The Master Key System to create a successful business career in St. Louis,

Missouri, where he eventually founded one of the largest conglomerates of his

time. He wrote several bestselling books focusing on his business technique.

Besides The Master Key System, he also wrote Mental Chemistry and

The New Psychology. Known as the "father of personal development,"

Haanel's commonsense wisdom has revolutionized conventional thought for almost

one hundred years.

"About this title" may belong to another edition of this title.

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With 3 stores less than 1 hour outside the DC/Metropolitan area (1 in Gaithersburg, 1 in Frederick and 1 in Hagerstown, MD), we have the largest selection of books in the tri-state area. Wonder Book and Video has been in business since 1980 and online since 1997. We have over 1 Million books for sale on our website and another 1 Million books for sale in our 3 locations. Items on Abe are not necessarily in stock at our retail locations. Please do not call the stores to place orders for Abe Books sales. We have a very active online inventory and as such, we can receive multiple orders for the same item. We fill those orders on a first come first serve basis, but will refund promptly any items that are out of stock. Since 1980 it has always been about the books. ALL kinds of books from 95 cent children's paperbacks to five figure rare and collectibles. A merging of the old and new is where we started, and it is where we are today. Our retail stores have always been places where a reader can rush in looking for a title needed for a term paper that is due the next day, or where bibliophiles can get lost "in the stacks" for as long as they wish. In 2002 USAToday recognized us as "1 of 10 Great Old Bookstores", and we have been featured in numerous other newspaper and TV stories including Washington Post and CSpan. Members ABAA, ILAB.

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