John Farndon has written many reference titles for children and has twice been shortlisted for the COPUS science book prize. Jack Challoner studied physics at Imperial College, London, and later worked in the education department of London's Science Museum. Robin Kerrod is an established author of children's information books and is a former winner of the COPUS science book prize. Rodney Walshaw graduated with a geology degree from Nottingham University, and obtained his doctorate at the Institute of African Geology in Leeds, England.