 With its financial position devastated by paper shortages during and after the war, Secker & Warburg was forced to join the Heinemann publishing group in 1952.During the 1950s and 1960s Secker & Warburg published books by authors including Simone de Beauvoir, Colette, Alberto Moravia, Günter Grass, Angus Wilson, Melvyn Bragg and Julian Gloag.In 1961 Warburg was made a director of the Heinemann group, a post he retained until his retirement in 1971.