The Hospital for Sick Children Atlas of Pediatrics provides the opportunity to "observe” a wide variety of pediatric conditions that practitioners may come into contact with in their practices. In covering all the major fields of pediatrics, this atlas gives the student of pediatrics a view of the common and not so common conditions affecting newborns, children, and adolescents. In this era of rapid growth in medical knowledge, technology, and testing it is imperative that the importance of the physical examination and the art of observation of the patient not be forgotten. We have deliberately attempted to limit textual information as much as possible and have focused on tables and illustrations to depict differential diagnoses and approaches to diagnosis and management. Furthermore, this atlas provides a great deal more information on the management of specific disorders than some of the other excellent pediatric atlases that are currently available.