Book excerpt: This book discusses the most common symptoms in pediatrics. It is based on best available scientific evidence and up-to-date information. The book also discusses a range of common conditions associated with bacterial and viral infections of the oro-nasal, eye, chest, abdominal and genito-urinary regions. The book helps the clinician to distinguish symptoms and signs of pediatric diseases to avoid diagnostic errors. Each chapter starts with a list of core messages, and includes tables and figures to focus on the subjects under discussion. The whole text is written in reader-friendly manner. The book is of interest to general pediatricians and doctors in primary care. It is also of interest to students, nurses and other professionals who look after children.