Study Guide to Franz Kafka's "A Hunger Artist":
http://www-personal.ksu.edu/~lyman/english320/sg-Kafka-HA.htm
Several detailed questions about "A Hunger Artist."
Efraim Sicher - "The Semiotics of Hunger":
http://www.chass.utoronto.ca/french/as-sa/ASSA-No8/ES4.html
Essay on, among other things, "A Hunger Artist" and the concept of artistic hunger.
Laughing with Kafka:
http://www.smallbytes.net/~bobkat/kafka.html
Essay by author David Foster Wallace on Kafka's humor.