Peter Mullen Author

Thomas C. John is an entomologist who has worked on a wide range of field identification apps for Germany’s Sunbird Images, which has produced more than 100 nature apps. Peter Mullen holds a PhD in biology and is an entomologist, the author of six field guides and the co-owner and director of Sunbird Images. Paul D. Brock is an entomologist and a scientific associate at the Natural History Museum in London. He is a renowned author of insect books, including Britain’s Insects (Princeton WILDGuides), and a widely published photographer. A world authority on stick-insects and leaf-insects, he has had a genus and several species named after him.