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The Master Key System - Charles Haanel's All Time Classic
The Master Key System Charles Haanel's All Time Classic Author:Charles F. Haanel Complete text with full set of Haanel's Questions & Answers after each chapter. The Book that will not only leave you 'feeling' good, but also 'thinking' good. In The Master Key System, presented as a series of twenty-four lessons, Charles Haanel discusses everything from how to feel healthy to how to become wealthy. One of the great classics of... more » all times with millions sold world-wide and rumored to be what inspired Bill Gates to leave Harvard and start Microsoft.« less