Cancer is a public health problem worldwide. Chemoprevention is an attractive as well an effective approach against this deadly disease. Research on chemopreventive potential of phytochemicals is the latest hotspot in the area of cancer chemoprevention research. This book provides a comprehensive review of various phytochemicals being explored by various scientists for their chemopreventive efficacy against cancer including their molecular targets details. The book has been divided into different chapters in a systematic way starting from cancer introduction, followed by chemoprevention strategies, role of phytochemicals and their molecular targets and in the concluding chapters a new approach and some important research results have been included. The book shall prove to be beneficial to anyone who is interested in knowing cancer and various chemopreventive agents being explored by scientific community to curb it.