Defines skin cancer and provides detailed illustrations of how it develops from sun exposure. Shows and discusses various types of ultraviolet radiation and how each kind penetrates the skin layers. Illustrates and shows photos of various types precancer and cancer. Lists the ABCD's of malignant melanoma and provides graph which indicates its incidence is rising rapidly. Shows how skin naturally works to prevent skin cancer, and illustrates difference between sunscreen and sunblock. Size: 20" W x 26" L