He is the author of four popular photographic books: Tales from Gombe, The Circle of Life, African Odyssey, and Serengeti Spy. He was featured in The World's Top Wildlife Photographers and in Horzu magazine as one of the five best wildlife photographers in the world. He has won a number of categories in the prestigious Wildlife Photographer of the Year competition and is one of the 10 "masters" in the Natural History Museum book The Masters of Nature Photography. He has also carried out numerous photographic assignments for National Geographic.