Christoph Lindenberg (1930–1999) completed an internship in an institution for juvenile delinquents. He studied history and English philology, as well as philosophy and education in Göttingen and Freiburg before attending the Waldorf teacher training seminar. In 1955, he worked as a teacher at the Free Georgenschule in Reutlingen, and from 1960 at the Tübingen Free Waldorf School, where he taught history, English, art, and social studies. From 1967 to 1970 Lindenberg was an assistant at the Department of Contemporary History at the University of Tübingen. Since 1980 he has worked as a freelance lecturer and writer. He lived near Freiburg. Lindenberg was a member of the board of directors of the Association of Independent Waldorf Schools and a permanent member of the anthroposophical monthly magazine Die Drei. He wrote two different biographies of Rudolf Steiner, the founder of Anthroposophy.