Mark P Witton is a leading palaeontological artist, author and researcher at the University of Portsmouth, UK. He has produced artwork for museums and universities worldwide, including Natural History Museum, London, and American Museum of Natural History, and acted as a consultant for documentaries and films, including the Walking with Dinosaurs franchise. He has written numerous books on palaeontology and palaeoart, including The Palaeoartist's Handbook and Recreating an Age of Reptiles for Crowood. After learning about Crystal Palace Dinosaurs as a child, he is thrilled to have made this contribution to the scholarship of this important, unique site. Ellinor Michel is an evolutionary biologist, ecologist and taxonomist at the Natural History Museum, London. Her work extends to palaeoclimates and scientific nomenclature. It was her interest in the history and philosophy of science that led her to co-found and chair the Friends of Crystal Palace Dinosaurs. The Dinosaurs have been a gateway to the wondrous ideas of Deep Time and to teaching us how scientific ideas come to life since 1854, she hopes this book will continue to bring those important messages to many generations of curious minds.