2013 Introduction

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I wanted to read a book that was 100% positive so I decided to take books that are in the public domain and revise them to be thoroughly positive.  The Master Key System is a personal development book by Charles F. Haanel (1866-1949) that was originally published as a 24-week correspondence course in 1912. It was later published in book form in 1916 by Psychology Publishing, St. Louis and The Master Key Institute, New York.

Darren J. McLeod

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