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.