The textbook of Pharmacognosy has been written for students of diploma in pharmacy first-year students keeping in mind specific requirements of the Pharmacy Council of India (PCI), Education Regulation - 2020. This is a bilingual book in both English and Hindi for easy understanding to students. This book is covering the entire syllabus as per new PCI norms including practicals and previous year question papers. This book containing eleven chapters staring with history and scope of pharmacognosy. Further, chapter including classification of drugs, quality control and analysis tests for herbal drugs. An individual chapter for different categories of drugs based on their biological effects. The book also containing description of plant fibres used as surgical dressings, traditional system of medicine and methods of preparation of Ayurvedic formulation. The later chapters describing about aromatic plants, herbs as food, herbal cosmetics and phytochemical investigation of drugs.