The Post-GATT era and new international patenting pattern offer many challenges in the field of herbal medicines. The WHO guidelines for assessment of herbal medicines have provided impetis to commercial exploitation of indigenous drugs in global context. Keeping this in view, it is our endeavour to provide comprehensive text of modern pharmacognosy covering Cultivation technology, quality control of herbal drugs, Phytochemistry, Phytopharmacy and therapeutic utility of crude drugs. The emphasis is laid on current trends in Herbal Drugs, Nutraceuticals, Ayurvedic Pharmacy, Marine Pharmacognosy, Medicinal plant biotechnology and endangered species of medicinal plants in this edition. The information of Plant vaccines, Omega-3 fatty acid, Hypericin, Spirulina, Forskolin, Joioba oil, Camptothecin, Feverfew, Echinacea, Phyllanthus, Bhringraj, Guduchi, Amra, Manjistha, Stevia, Long Peper and many other drugs is the added feature of this book.