Manfred Mohr is regarded as a pioneer of digital art—he was one of the first painters of the 20th century who turned towards the computer as a medium of artistic production. His work took its definitive turn at the end of the 1960s after Mohr’s encounter with Pierre Barbaud, one of the forerunners of computer-based composition in France. Mohr began to experiment with computers, and as early as 1971, the Mus.e d’Art Moderne de la Ville de Paris showed his computer-generated drawings in a solo show. The textbook offers insight into the early work of Manfred Mohr through a selection of essays, letters and interviews from the years 1963 –1979. The documents are exemplary for the early artistic debate surrounding computer technology, for the battles with new terms and models as well as the positioning of this new genre within the field of art. Manfred Mohr (*1938) lives in New York. The ZKM in Karlsruhe presented a retrospective in 2013, and likewise in 2013 Mohr received the ACM SIGGRAPH Distinguished Artist Award for Lifetime Achievement in Digital Art.