Answer
Robert Crumb’s various popular characters were inspired by Psychedelics and cartoons from the 1920s and 1930s. The psychedelic movement was a major influence on Crumb’s work, as it encouraged him to experiment with new forms of expression and to explore his subconscious mind. Cartoons from the 1920s and 1930s also had a significant impact on Crumb’s work, as they introduced him to a variety of visual styles and storytelling techniques.