Terry Jennings has written a number of scientific papers, more than 400 articles and over 250 books. His articles range from wildlife and natural history, nature conservation and the environment to pet-keeping and science teaching. He has been published in a variety of magazines and journals including Weekend, Sunday Express, Sunday Times Magazine and The Guardian. His books are mostly aimed at children and teachers and his publications include The Young Scientist Investigates series, The Wildlife Watchers series and My Day At The Zoo.