Manetti 80mm-Platinum-Leaf Surface-Book is 1-book of Platinum-leaf with contains 25 sheets of Platinum-Leaf, size-3-3/8" x 3-3/8" 22 gram weight, loose/surface-Leaf. Manetti 80mm-Platinum-Leaf Surface-Book is surface-leaf therefore it is Loose-Leaf. Each Book of 25 sheets has a coverage area of 1.98sq ft. without consideration for waste or overlap. This product is great for glass gilding and surface gilding. It is loose in the book and should be applied with a gilders tip or other method of transfer. Manetti 80mm-Platinum-Leaf Surface-Book available here.