The book covers the epidemiology, pathology, molecular biology, clinical features, diagnosis, and treatment of Hodgkin and non-Hodgkin lymphomas in children and adolescents. It is a combined effort of investigators who are leaders in the field of childhood lymphomas. Introductory chapters on Hodgkin and non-Hodgkin lymphomas in children provide a concise historical overview. All chapters have a standalone structure and those regarding the individual subtypes of lymphomas provide up-to-date results of recent clinical trials and practical guidelines for work-up and treatment. The pathology chapters are comprehensive and include excellent photographs as well as detailed review of the scientific advances pertaining to the molecular pathogenesis of each type of malignant lymphoma seen in childhood. There is also a concise chapter on post-transplant lympho-proliferative disease and lymphomas associated with congenital and acquired immunodeficiency states. The book is at the level of sub-specialists in pediatric hematology and oncology, radiation oncology, pediatric surgery and hematopathology.