This book provide you the details regarding standardization of herbal drugs. it incudes macroscopy i.e., colour, test, odour and specific morphological characteristics found in that plant part. Also it deals withe microscopical evaluation e.g., Transverse section and powder microscopy.Different procedures are adopted for standardization such as Toatl ash,Acid-insoluble and water soluble ash value, extractive values and Phytochemical screening to show the presence of chemical constituents in drug.