David Foldvari has been working as an illustrator since the late 90's. His client list includes Nike, Penguin, The New York Times, Random House, The Museum of London, The Guardian, Newsweek, Le Monde, Historic Royal Palaces and countless others. His work has been exhibited globally, and it appears in print weekly in The Observer, where he illustrates columns by David Mitchell, Stewart Lee, and Charlie Brooker amongst others. David currently lives and works in London, and is represented by the Big Active agency. Here he talks us through his process.