Martin Krengel

Martin Krengel (born 1980) studied psychology and economics, graduating with distinction in both subjects. He subsequently earned a doctorate and worked, among other roles, for Boston Consulting Group and T-Mobile International. He authored several guides on motivation, learning and time management, including »Der Studi-Survival-Guide« and »Golden Rules«. Krengel also worked as a psychologist, management consultant, lecturer and public speaker. Before becoming an author, he was an artistic gymnast.