The New Master Key System (Library of Hidden Knowledge)

By Charles F. Haanel

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, and then in book form in 1916. The ideas it describes and explains come mostly from New Thought philosophy. It was one of the main sources of inspiration for Rhonda Byrne's film and book The Secret (2006).

• Language: English
• Publisher: Flip
• Release date: Oct 31, 2018
• ISBN: 9782291055464

Charles F. Haanel

Charles F. Haanel (1866–1949) used the concepts and methods found in The Master Key System to create a successful business career in St. Louis, Missouri, where he eventually founded one of the largest conglomerates of his time. He wrote several bestselling books focusing on his business technique. Besides The Master Key System, he also wrote Mental Chemistry and The New Psychology. Known as the “father of personal development,” Haanel’s commonsense wisdom has revolutionized conventional thought for almost one hundred years.