This book "Medicinal and Aromatic Plants: Essential Oils and Pharamaceutical Uses" has been a surge in our knowledge in the isolation and analysis of the extracts of the less esploited herbals. This gives a panorama on the essential oils and its active principles used in pharmaceuticals. In this context of the growing awareness among the people regarding the side effect of chemical and synthetic medicines, their carcinogenicity, toxicity etc., the herbal medicines and their practice has gained significance.