Edward Burtynsky is a Canadian-Ukrainian photographer who hangs out of helicopters to capture aerial scenes of rapid industrialisation and destruction, on Earth. So how does he pick his monumental subjects? And what has he witnessed over his 40-year career? Plus, this week on The Drawing Board, Daniel and Lily Mae Martin talk about how to draw hands. Why can they be so hard to get right?! And Australian sculptor Clayton Blake on making art for Burning Man in the Nevada desert -- just don't call it a festival!