Charles F.
Haanel was a noted American author and businessman who belonged
to the American Scientific League, The Author's League of America,
The American Society of Physcical Research, the St Louis Humane
Society and the St Louis Chamber of Commerce. He wrote several
books which were published in St. Louis by Psychology Publishing
and by his Master Key Institute in New York. Mr. Haanel put into
his books the ideas and methods he used to gain his success (he
started his own company which eventually became one of the largest
conglomerates of his time). Besides the "Master Key System,"
which he wrote in 1912, he also wrote "Mental Chemistry"
and "The New Psychology".
