Over a career spanning more than 25 years, Tunick has staged 125 mass nude installations in 25 countries, photographing tens of thousands of volunteers in their birthday suits. He has been arrested for it five times.
Critics say he's a one-trick pony chasing publicity; fans say his work transcends difference and foregrounds the humanity in our industrialised lives.
Either way his popularity is undeniable, with those who model for him saying it's liberating and unforgettable. None of them gets paid but everyone receives a print of the photograph in which they appear.