A symptom- or problem-based approach to differential diagnosis in paediatrics, with each symptom being described according to epidemiology, physiological principles underlying the symptoms, history, examination, investigations and a case study. A short summary box on management will be included, but the emphasis will be on the process of making a diagnosis. The new edition will be much more attractively presented, with the use of a second colour in the text, more illustrations, and a more comprehensive and extensive collection of symptoms. Community aspects will be considered throughout.