Andrea Ferrari has been working since 1994 at the Pediatric Oncology Unit of the Istituto Nazionale Tumori of Milan, where he is the person responsible of the Outpatient Service. He has dedicated his career in curing and studying children, adolescents and young adults with solid tumors. In particular, he tackled research projects dedicated to soft tissue sarcomas, pediatric rare tumors and adolescents/young adults projects. He worked as chair and board member of various international cooperative groups, developing a large experience in leading and coordinating multidisciplinary working team. Among the different accomplishments, he founded the National TREP (Tumori Rari Età Pediatrica – Rare Tumors of Pediatric Age) project dedicated to pediatric very rare tumors, and he founded the European EXPERT (European Cooperative Study Group for Pediatric Rare Tumors) project. He was founding member of the EpSSG (European pediatric Soft tissue sarcomas Study Group). Within EpSSG, he is member of the Board and chairman of the NRSTS (Non-Rhabdomyosarcoma Soft Tissue Sarcoma) Scientific Committee. In the last years, Dr. Ferrari dedicated himself also to the special needs of adolescents and young adults (AYA) with cancer. He developed the “Youth Project” in his center. He currently chairs the Italian AIEOP Working Group on Adolescents and co-chairs the Italian AIOM-AIEOP AYA Group; he chairs the AYA Committee of the SIOPE (European Society of Paediatric Oncology) and co-chairs the joint Working Group on AYA of SIOPE and ESMO (European Society for Medical Oncology). He is author or co-author of more than 480 papers published on international scientific journals, and 40 book chapters.