Our Bookcalf originates mainly from New Zealand and Scandinavia. The skins are vegetable tanned using a combination Tara, Chestnut, and/or Oak. They are then aniline dyed and dried on our 'glass' drying machine to enhance the natural smoothness and beauty associated with this quality of leather. The surface is absorbent and lends itself well to additional dyeing by the user. You can see examples of books bound in our Bookcalf in the 'Showcase' area of our web site. Average Skin Size: 0.77 - 0.84m² (8¼ - 9ft²) - Faircalf are slightly smaller Approx. Cut Size: 75 x 65cm Standard Substance: 0.7mm Colours available: 14 standard shades plus wheat and R5 Dark Tan Grades: I, II, and III. Feel free to reach out to us at [email protected] with any specific requests or needs you have for this leather - we're happy to help!