Joseph Beuys was a German Fluxus, happening and performance artist as well as a sculptor, installation artist, graphic artist, art theorist and pedagogue of art. His extensive work is grounded in concepts of humanism, social philosophy and anthroposophy; it culminates in his "extended definition of art" and the idea of social sculpture as a gesamtkunstwerk, for which he claimed a creative, participatory role in shaping society and politics. His career was characterized by passionate, even acrimonious public debate. He is now regarded as one of the most influential artists of the second half of the 20th century. His charismatic presence, his urgent and public calls for reform of all kinds, and his unconventional artistic style (incorporating ritualized movement and sound, and materials such as fat, felt, earth, honey, blood, and even dead animals) gained him international notoriety during these decades, but it also cost him his job.
His reputation in the international art world solidified after a 1979 retrospective at New York's Guggenheim Museum, and he lived the last years of his life at a hectic pace, participating in dozens of exhibitions and traveling widely on behalf of his organizations.