The online course on soft tissue and bone sarcomas is addressed to an International audience of clinical oncologists interested in advancing their knowledge and skills on the clinical management of these tumors in a multidisciplinary context. Taking into account that “networking” is the keyword to improve quality of care of rare cancers, the course is developed in the framework of EURACAN, the European Reference Network on rare adult solid cancers, with the aim of reinforcing the collaboration among oncologists of different countries who are already part of the network or willing to be part of it in the near future. The course will also be part of the “Career development educational pathway on Rare Adult Solid Cancers” (more information about the full educational programme on rare cancers will be published on the ESO website in the coming months).