Spencer Tunick's artwork is a mass event, drawing together thousands to pose unclothed in the public space.

And whether it becomes an almost abstract landscape or a very human statement of defiance, the end result is a remarkable collection of photographs that outlive that initial moment and are displayed in galleries across the world.

In the Drawing Room, he talks about his latest work, a collaboration with Skin Check Champions on a beach in Sydney, which is using fine art to draw attention to skin cancer.