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”.
ASIN : 1936594242
Publisher : SoHo Books (November 25, 2010)
Language : English
Paperback : 158 pages
ISBN-10 : 9781936594245
ISBN-13 : 978-1936594245
Item Weight : 8.6 ounces
Dimensions : 6 x 0.4 x 9 inches
