A WATERSTONES BEST BOOK OF 2023: POPULAR SCIENCEWhat Is a Doctor? is a vital contribution to the ongoing debate about how we maintain an NHS that is both fit for purpose and free.Taking insight from his thirty-year career as a GP, Dr Whitaker offers a unique perspective on the medical movements and societal changes that have transformed the role of doctor, and suggests what could be done to save the future of the NHS.