This set of decorative books is crafted from vellum, a fine parchment paper made from calfskin. Only recycled or otherwise disposed of materials are used, making this decorative piece an environmentally-sustainable choice. Each order comes with one linear foot of books, which will be about 8-10 books. Each set is handmade to order and will vary in sizes, shapes, etc. The tallest book will be up to 9.5″. The depth of the books will be 6″.