Unpublished drawings and archival materials from the 70-year career of Otto Otl Aicher. This book, co-published with the Museo de Bellas Artes at Bilbao, collects many unpublished material from Otl Aicher, a legendary figure in contemporary design. The eighty unpublished drawings of the Metro Bilbao corporate image project stand out, a commission resulting from his friendship with Norman Foster. In these pages we also discover the creation processes of other famous works by Aicher, such as those of Braun, the Munich Olympics '72, Bulthaup or Isny Allgau, as well as unpublished materials from his architecture projects for Rotis, an old agricultural complex which became a place of residence and work. Otl Aicher (1922-1991) is one of the most relevant designers of recent times. Together with Inge Scholl and Max Bill he founded the Ulm College of Design in 1951. Among his great projects, the communication system of the 1972 Munich Olympic Games stands out, with its extraordinary design of pictograms. The combination of rigor and freedom, together with an intellectual development encouraged by the relationships that since the Ulm school he established with intellectuals such as Josef Albers or Alexander Kluge, made him an exceptional designer. 200 images