This book describes important developments and emerging trends in experimental and clinical cancer gene therapy. It reflects the tremendous advances made over recent years with respect to immunogenes, suicide genes and gene correction therapies, as well as in gene suppression and miRNA therapies. Many of the described strategies focus on the generation of more efficient and specific means of attack at known and novel cellular targets associated with tumor development and progression. The book also details parallel improvements in vector design, vector delivery, and therapeutic efficacy. It offers readers a stimulating, broad overview of advances in the field, linking experimental strategies to their clinical applications.