Sir Quentin Blake on the art of illustrating

The world's first public gallery and education space dedicated to illustration is to showcase the archive of Sir Quentin Blake.

The House of Illustration exhibit opens in London on 2 July, and will feature Blake's artwork from Roald Dahl's The Twits and David Walliams' The Boy in the Dress.

Sir Quentin speaks to the Today's programme's Sarah Montague.