Cells in our body undergo tightly regulated replication to enable growth to occur in a precise, and to ensure that damaged or worn out tissues are replaced. Regulation is mediated via many different mechanisms; it is when these mechanisms fail, and regulation is lost, that cancer can result. Recent advances in molecular cell biology have greatly expanded our understanding of the processes and mechanisms that underpin the regulation of cell replication, and what is happening at the molecular level when these fail. The third edition of The Molecular Biology of Cancer: Mechanisms, Targets, and Therapeutics offers a fresh approach to the study of the molecular basis of cancer, by showing how our understanding of the defective mechanisms that drive cancer is leading to the development of new targeted therapeutic agents.