Developed by the noted Oxford conservator Christopher Clarkson the 'Clarkson Book Support' holds the rare or valuable book at the ideal angle of 20 degrees, which is the best compromise between light and heavyweight books. Manufactured from a specially selected foam which allows the book to be supported over all its surfaces and ensures that the book does not slip. The 'Clarkson Book Support' allows the book to rest at its optimum position, it is designed to accommodate all types of spine, including hollow back, case hollows and solid backed. Comprises 1 x 20 degree wedge, 2 x side wedges, 2 x rectangular pads and 1 x spine support.