Tropical diseases are not merely a group of nosologic diseases indigenous to the intertropical zone. Many are diseases of poor public health originating from poverty, ignorance, and population upheaval. Tropical dermatoses represent a public health problem in 127 countries with a population of 3 billion people who do not have access to health care. Currently, infectious and parasitic diseases along with emergent diseases such as AIDS, or old re-emergent, drug-resistant diseases constitute the majority of tropical dermatoses. This handbook presents the geographical distribution, etiology, clinical picture, and treatment of dermatoses in the tropics.