Over the past two decades, there has been a tremendous increase in our understa- ing of ubiquitination and proteasome degradation. As the editors, we thank Springer Publishing for allowing us to organize this collection of reviews on the ubiquit- proteasome system, oncogenesis, and cancer therapy. We asked our colleagues, who are experts in the field, to provide an overview of their research and recent progress. Each chapter covers a broad range of topics that include defects in ubiquitination identified in specific tumors to new directions to treat cancer. In the Introduction, Rati Verma...