Laszlo Moholy-Nagy (1895-1946) was among modernist photography's most vocal theorists and ideologues, and a tireless explorer of its outer limits. In 1930, he published "60 Fotos," an almost pedagogic visual treatise in which he performed virtuoso turns on all kinds of photographic possibilities, from camara-less pictures and photograms--for which he squirted oil into developer and squeezed oil between sheets of glass during exposure (among other techniques)--to photomontage, as well as more conventional photographs. "60 Fotos" proposed photography as both a medium with intrinsic material properties to explore and as an instrument capable of surpassing the human eye in its recording of the world. This classic treatise features some of the Bauhaus teacher's finest examples of photograms, negative prints and photomontage; Errata's spread-by-spread reproduction of the volume also includes a contemporary essay by noted photo-historian David Evans.