The amazing success story of the man behind Ströer, t-online.de, Statista... More than once Udo Müller, with perseverance and his enormous penchant for risk-taking, put everything on one horse. He started off in the world of external advertising and became market leader, first in East Germany, then in the united Germany. Then he went global. And shortly afterwards spectacularly went public at the stock market. Followed by an expansion of his product line with digital publishing, online marketing and dialogue media. During the transition from "Old Economy" to "New Economy" Ströer has grown to be a unique and diverse media empire.

Hartmut M Volz, born 1946, has been working as a journalist for more than fifty years. For nearly two decades he was a member of the editorial staff of the "Spiegel", editor-in-chief at News in Wien, and supported Axel Springer, Burda, Bauer, Deutsche Börse, Siemens, Tui and Yahoo as a media advisor He is the author of Die Spur des Geldes. Der Fall des Hauses Siemens (2009).