In this book, Biogenesis of Phytopharmaceuticals and basic metabolic pathways are dealt with various metabolic pathways for secondary metabolites. Radiotracer techniques, chemical nature of phytoconstituents, screening of drugs covered are all necessary and importance topics. The Aromatic plants, Plant Tissue Culture, Herbs as health food topics also covered in this book. Various isolation techniques, ectraction procedures and analytical techniques e.g., chromatography, spectral analysis of crude drugs have been extensively covered.