A writer, broadcaster, and photographer, Adam Hart-Davis is a popular and respected explainer of science and engineering. He presented the BBC series What the Romans Did For Us, followed by further programs on the Victorians, Tudors and Stuarts, and Ancients. He also co-presented Tomorrows World, Science Shack, The Cosmos: A Beginners GuideJust Another Day, about the science and technology of everyday life. He is the author of more than 35 books on science, invention, and history.