The book offers a comprehensive review of the relations between volumes and outcomes in oncological surgery especially in Italian hospitals, based on national and regional data. After illustrating the quality-control methodology and the determinants of surgical outcomes, it discusses the volume-outcome relationship in different fields of surgical oncology (cancers of the upper and lower gastrointestinal tract, hepatopancreatobiliary system, breast, sarcomas etc.) and suggests possible solutions. The latest findings from Europe and the USA are also presented.