In the last years, research keen on natural products has progressed extremely, thanks to assistance from the fields of chemistry, life sciences, food science and material sciences. Comparisons of microorganisms, lower eukaryotes, animals, higher plants and marine organisms with natural products are now well-documented. This book delivers an easy-to-read impression of natural products. The contents involved in this book cover most of the aspects of natural products including general introduction, nomenclature, occurrence, isolation, detection, structure elucidation both by degradation and spectroscopic techniques. It also describes biosynthesis, synthesis and biological activity. Therefore it will be beneficial for students, new researchers and industry.