Charles F. Haanel

Charles Francis Haanel (May 22, 1866 – November 27, 1949) was an American author, philosopher and a businessman. He is best known for his contributions to the New Thought movement through his book The Master Key System.

Charles F. Haanel

Charles Francis Haanel (May 22, 1866 – November 27, 1949) was an American author, philosopher and a businessman. He is best known for his contributions to the New Thought movement through his book The Master Key System.