Cancer has been the driving force behind innumerable studies, leading to the discovery of oncogenes (or cancer-causing genes) and helping us understand the inner world of the cell. This knowledge has not only provided us with the ammunition we need to fight cancer, it has also paved the way for many powerful therapies that will someday rid the world of other noxious diseases, including AIDS, Alzheimer's disease, and the infirmities that strike us as we grow old. Cancer, Revised Edition explores the many facets of cancer research, from basic genetic and cellular mechanisms to the danger of carcinogens and the influence of lifestyle. This edition contains updated and revised material throughout, three new chapters, and many new drawings and photographs, all of which are now in full colour. Chapters focus on the unique characteristics of normal cells, cancer cells, cancer genes, and cancer progression, as well as the recent shift in the scientific community regarding the root cause of cancer. An entire chapter has been devoted to carcinogens, containing information that is not readily available in other similar resources.