 Bertelsmann was founded as a publishing house by Carl Bertelsmann in 1835.After World War II, Bertelsmann, under the leadership of Reinhard Mohn, went from being a medium-sized enterprise to a major conglomerate, offering not only books but also television, radio, music, magazines and services.Its principal divisions include the RTL Group, Penguin Random House, Gruner + Jahr, BMG, Arvato, the Bertelsmann Printing Group, the Bertelsmann Education Group and Bertelsmann Investments.