Prescribing for children is problematic. Children are not small adults in terms of their physiology, and they cannot be subjects in clinical trials. This makes prescribing for them something of an art and a daunting one at that for trainees. Will Carroll (co-editor of the Illustrated Textbook of Paediatrics amongst other titles for paediatrics trainees) with a team of fellow paediatricians and a hospital pharmacist have sought to demystify...