Book excerpt: The Chemistry inside Spices & Herbs: Research and Development brings comprehensive information about the chemistry of spices and herbs with a focus on recent research in this field. Experts in phytochemistry have contributed reviews with the aim to give the reader deep knowledge about phytochemical constituents in herbal plants and their benefits. The contents include reviews on the biochemistry and biotechnology of spices and herbs, herbal medicines, biologically active compounds and their role in therapeutics among other topics. Chapters which highlight natural drugs and their role in different diseases and special plants of clinical significance are also included. Volume 3 covers several topics: the treatment of Polycystic Ovary Syndrome (PCOS), managing rheumatoid arthritis and related inflammatory conditions, orchid-derived natural flavoring and therapeutic agent Vanillin, Silymarin's utility in treating hepatic diseases, phytochemistry and pharmacological activities of Hygrophila spinosa, pharmacological and chemical aspects of Tulsi, Combretum caffrum as a potential anticancer molecule, and the roles of herbs in treating diabetes. This book is an ideal resource for scholars (in life sciences, phytomedicine and natural product chemistry) and general readers who want to understand the importance of herbs, spices and traditional medicine in pharmaceutical R&D and clinical research.