About the Author

Charles F. Haanel (1866-1949) was a noted American business man, author and publisher. Born in Ann Arbour, Michigan, he spent his life in St. Louis, Missouri. He wrote a total of five books, the Master Key System being the first and most important. Charles Haanel was warded several doctorates, and was a member of a number of associations. He was a 32nd degree Mason, as well as a Rosicrucian.

Helmar Rudolph (1966-) is of German origin, but lives in Cape Town, South Africa. He did the first ever German translation of the Master Key System and has turned this into his fulltime profession. Every year he tours Europe and beyond to give talks and seminars on the subject. On his websites, he supports students in both English and German, and is also offering additional products and services.