Summary of the Master Key System by Haanel. Abundance & Prosperity Secrets based on the writings of the Famous Charles F. Haanel who has the best seller - The Master Key System. It has been said that Bill Gates of Microsoft read the writings of Haanel at Harvard before dropping out to start The Microsoft Corporation. This executive analysis contains the critique of all 24 parts of the book plus a summary of the lost and banned 4 chapter sections that are not readily available. Prof. Mentz does an outstanding job of extracting and codifying the teachings of Haanel and Wattles in the Executive Guide. This book also has a bonus summary and analysis of the famous book "The Science of Getting Rich" By Wallace Wattles.