"Plants are important source of a variety of products found to be useful in human beings. These are also a major component of forming biodiversity in certain ecological areas. Plants are not only a source of varied products but also these are actively participating role in ecological balances in multifold directions. Medicinal and Aromatic plants are important source as a primary health care among the human society. Demand for medicinal plants increases with the market, which is broad. Herbal treatment of various disorders is now a days going popular because its potential application and effect, less side effect. Each one Medicinal and Aromatic plants includes a specific type and concentration of chemical compounds and are differ as per variation in plant species and also concentration changes by the age of plants. The utility of the Medicinal and Aromatic plants is depending on their presence as well as by the active treatment potential to control specific disorders. In one of the studies by the World Health Organization, it is estimated that 80 per cent of the population of developing countries relies on traditional plant based medicines for their health requirement. Even in many of the modern medicines, the basic composition is derived from medicinal plants and these have become acceptable medicines for many reasons that include easy availability, least side effects, low prices, environmental friendliness and lasting curative property. India and China are the two major producing countries, having 40 per cent of the global biodiversity and availability of rare species. These are well known as the home of medicinal and aromatic crops that constitute a segment of the flora, and provide raw materials to the pharmaceutical, cosmetic, fragrance, flavor etc. industries. This volume Aromatic and Medicinal Plants covers interested research topics dealing with isolation, purification, and identification of active ingredients from wild and medicinal plants. It covers interesting research topics and the use of natural resources for medical treatments in some severe diseases. Day by day there is an increase in ethnobotanical, taxonomic, or phytochemical studies, providing an encouraging picture of research to support its use in traditional medicine. This discovery will lead to an increase in the global pharmaceutical market as well as open such new gate for medicinal plant research. This book will add significant information to medical researchers, practitioners and can be used for postgraduate students."