Sean Cole is a field naturalist who has been studying orchids for more than twenty years, with special interests in identification, taxonomy and pollination. He has published many articles on British orchids, including his speciality, the Ghost Orchid. Mike Waller is an ecologist and botanist who specialises in European orchids. He has worked for the Royal Society for the Protection of Birds, the Natural History Museum in London, the London Wildlife Trust and Plantlife. Twitter @Britainsorchids Instagram @britains_orchids_book