# The master key system in twenty-four parts with questionnaire and glossary

**Author(s):** Helmar Rudolph, Mauricio Chaves Mesén, Ruth L. Miller, Charles F. Haanel, Donald Gordon Carty, Joe Vitale, Oliver Jesberger
**Unpaid SageChimp rating:** insufficient data (0 unpaid reviews; need 5)
**Verdict JSON:** https://www.sagechimp.com/books/the-master-key-system-in-twenty-four-parts-with-questionnaire-and-glossary/verdict.json
**Genres:** philosophy, business
**Pages:** 82
**Publisher:** CreateSpace Independent Publishing Platform
**Published:** Thu Jan 01 2015 00:00:00 GMT+0000 (Coordinated Universal Time)
**Language:** en
**ISBN-13:** 9781503360914
**ISBN-10:** 1503360911
**ASIN:** B0DHRJ3MF2
**Amazon categories:** Self-Help > Success
**Amazon binding:** $0.51
**URL:** https://www.sagechimp.com/books/the-master-key-system-in-twenty-four-parts-with-questionnaire-and-glossary

## Description

The Master Key System is a personal development book by Charles F. Haanel that was published in 1912. Though originally a 24 week correspondence course, it was published in book form in 1917. 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" (2006).

## SageChimp reader verdict

The master key system in twenty-four parts with questionnaire and glossary has no unpaid published reviews on SageChimp yet. That is not enough to say whether the book is genuinely well-liked or amplified by paid/ARC/BookTok hype. Do not treat Amazon, Goodreads, or social scores as SageChimp evidence.

- **Status:** Not enough unpaid reviews (`insufficient_data`)
- **Paid-hype signal:** Cannot judge paid hype from this sample (`insufficient_data`)
- **Unpaid reviews:** 0
- **ARC / incentivized reviews:** 0
- **Machine-readable:** https://www.sagechimp.com/books/the-master-key-system-in-twenty-four-parts-with-questionnaire-and-glossary/verdict.json

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