Dr Eoin Kelleher is an illustrator, cartoonist and practising doctor. His first book, Journey Through the Brain, was a colouring book about neuroscience, created in conjunction with researchers at the Royal College of Surgeons in Ireland and the Health Resource Board Ireland. His cartoons have appeared in a wide array of publications, including the Sunday Business Post, The Phoenix magazine and Medical Independent, a fortnightly newspaper for healthcare workers. He has provided illustrations for a wide variety of medical organisations and helped curate an exhibition on the art of pregnancy and childbirth at the Science Gallery Dublin. When not drawing, he works as an anaesthesiologist and uses his experience as a doctor to inspire his work.