Epidemiology of Bone and Soft Tissue Sarcomas.- Pathologic and Molecular Techniques Used in the Diagnosis and Treatment Planning of Sarcomas.- Diagnostic Imaging of Pediatric Bone and Soft Tissue Sarcomas.- Local Control Issues in Pediatric Bone and Soft Tissue Sarcomas.- Drug Discovery in Pediatric Bone and Soft Tissue Sarcomas Using In Vivo Models.- Pediatric Rhabdomyosarcoma: Biology and Results of the North American Intergroup Rhabdomyosarcoma Trials.- Non-Rhabdomyosarcoma Soft Tissue Sarcomas.- Fibrous and Fibrohistiocytic Tumors.- Ewing Sarcoma Family of Tumors.- Osteosarcoma.