This book is a little gem...The remit is extensive and the book is compact. It will therefore be a useful summary of current understanding to be used as a reference and would be particularly helpful for medical undergraduates invovled in a vertically constructed curriculum or for pediatricians, whether in training or maintaining their CPD. It is not just a book for someone who wants to know the answer, but for someone who wants to know why the answer is as it is and rejoices in the explanation. --Archives of Disease in Childhood<br>