The book "The Art of Preserving Various Animal and Vegetable Substances for Several Years, 2nd Edition. A Work Published by Order of the French Minister of the Interior on the Report of the Council of Arts and Crafts" by Nicolas Apper is an important source of knowledge on food preservation. In the book, you will find detailed instructions for storing both meat and vegetable products for a long time, which allows you to preserve their useful properties for a long time. The author shares his knowledge and experience to provide readers with ways to effectively preserve a variety of products. This book is an invaluable source of information for anyone interested in the process of food preservation and preservation.