Kerry James Marshall: 'As an artist, everything should be a challenge'

Born in Birmingham, Alabama, Kerry James Marshall taught himself to draw and made his first paintings in Harlem YMCA. As a major retrospective opens in LA, he talks about taking on the Old Masters
The day before the crowds get in to his critically praised retrospective, Kerry James Marshall is walking around the Museum of Contemporary Art in Los Angeles, taking in 30 years of his work. Wearing a casual green T-shirt and slacks and with his visitor badge still attached, he looks more like a touri