Stefan is an independent Finance Expert, and has written various best sellers. From the tender age of 16, he has been interested in the international financial markets. When he was 17 he got to know the legendary André Kostolany and maintained a deep friendship with him until Kostolany’s death in September 1999. The general public got to know Stefan between 2001 and 2005, when he reported live for the N-TV television station from the trading floor of the Frankfurt Stock Exchange. Stefan’s latest book Die Inflation kommt! has been noted as one of the most successful business books in 2010.