Mark O'Shea is a leading authority on snakes and best known in the UK for his Channel 4 series Mark O'Shea's Dangerous Reptiles. He is well known internationally for his natural history adventure films on Animal Planet and Discovery Channel, and for his expeditions in search of snakes in the wild - many of these exciting encounters are described in Boas and Pythons of the World. Mark's previous books include Venomous Snakes, published by New Holland (2005) and Dorling Kindersley's Reptiles and Amphibians.