I'm an ecologist and botanist who specialises in European orchids which I've been studying for 18 years. I've worked for the RSPB, Natural History Museum, London Wildlife Trust and Plantlife. I'm a co-author of the new field guide - Britain's Orchids - with Sean Cole which is part of the Princeton University Press WildGuides series. Sean is a field naturalist who has been studying orchids for more than 20 years, with special interests in identification, taxonomy and pollination. He has published many articles on British orchid, including his speciality, the ghost orchid.