Victor Moscoso is a Spanish–American artist best known for producing psychedelic rock posters, advertisements, and underground comix in San Francisco during the 1960s and 1970s. He was the first of the rock poster artists of the 1960s era with formal academic training and experience. He was the first of the rock poster artists to use photographic collage in many of his posters.

Josef Albers was a German-born American artist and educator who is considered one of the most influential 20th-century art teachers in the United States. Born in 1888 in Bottrop, Westphalia, Germany, into a Roman Catholic family with a background in craftsmanship, Albers received practical training in diverse skills like engraving glass, plumbing, and wiring during his childhood. He later worked as a schoolteacher from 1908 to 1913 and received his first public commission in 1918 and moved to Munich in 1919.