The aim of this book is to educate the readers about tumor immunotherapy and cancer vaccines with the help of elucidative information. Utilizing the capabilities of the body's immune system to resist or fight back the extremely harmful tumor cells has been the objective of several scientific researchers, with progress in cancer therapy and immunology enabling cancer treatment to become an actuality. Top-notch scientific experts have joined forces to team up and evaluate recent advancements and trends in cancer immunology and the result is a promising evaluation of modern scientific treatments. At various instances within the book, the authors have presented the technicalities behind therapeutic methods comprising of cancer vaccines with specific focus on prostate cancer, melanoma and new methodologies using both innate and adaptive immune responses.