ROBERT CRUMB & DAN NADEL in conversation with MATT CROENING

The first biography of Robert Crumb, one of the most profound and influential artists of the 20th century, whose iconic, radically frank and meticulously rendered cartoons and comics inspired generations of readers and cartoonists, from Art Spiegelman to Alison Bechdel. Crumb and his biographer Dan Nadel talk to "Simpson" creator Matt Groening.