Since he was 15 years old, Wolfgang G. Sonnenburg has dealt with the laws of success. In his Book Millionaire Spirit he pointed out the the most important insights about them, and implements individual purpose-finding with executives and entrepreneurs.

In 2002 Sonnenburg founded WIN WIN AG and used the time to become encouraged by his mentors, Bob Proctor and Dr. Demartini, and to learn some new insights by speaking with Bruce Lipton and Rupert Sheldrake, Prof. Güntel Faltin (Chair of entrepreneurship - Free University Berlin) and Dr. Jürgen Karsten. He is operates his workshops and "Millionaire Spirit Seminars" worldwide.