This book provides ethnobotanical data about the traditional uses of medicinal plants across the world. This book aims to analyze and evaluate the use of medicinal crops among different groups of people. The book mentions that medicinal plants can be used to treat various diseases, especially respiratory diseases and skin diseases. It discusses the importance of traditional usage of plants to treat and prevent some common and certain rare diseases. There are also medicinal uses of some local plant taxa reported. The book mentions that medicinal plants represent natural remedies for various diseases in indigenous communities. Phytotherapy still maintains an important role in the treatment of ailments in many areas.