Robert Crumb. 2002. Sketchbook Reports. Cornélius.
The Sketchbook Reports reproduce two pieces Crumb did for Help! magazine in 1965 on Harlem and Bulgaria. These are likely the first examples of Crumb's published work.
Crumb, Robert. 1965a. Harlem. A Sketchbook Report. Help!, January.
---. 1965b. Bulgaria. A Sketchbook Report. Help!, July.
