This is a treatise on the conversion of raw skins into leather, both theoretically and practically. With the help of eight plates and numerous illustrations, this book provides valuable insights into the anatomical structure and chemical composition of hides, commercial tanning materials, water used in tanning, methods of chemical analysis for the tannery, and various types of leather such as sole-leather, enamelled leather, morocco leather, chamois leather, and many more. The book also covers the construction and maintenance of tanneries, drying sheds for leather, and statistics and bibliography related to the leather industry.