Exceptional personality Nikola Tesla left significant traces during his „Graz years“. In this richly illustrated book, renowned Styrian scientists have set themselves the task of investigating these traces. Embedded in the general technical and economic development of these years in Styria, Tesla‘s studies come to life again. In addition, one learns how Nikola Tesla‘s ideas affected science and industry, what development his Graz educational institution, the Joanneum, underwent and how Tesla‘s legacy still lives today at Graz University of Technology.