is two or more parallel folds on a sheet of paper with the end flaps folding inward (see also folding) Gloss the property that's responsible for coated paper's shiny or lustrous appearance; also the measure of a sheet's surface reflectivity Gloss is often associated with quality: higher quality coated papers exhibit high gloss (see also coated paper) Grade a type or class of paper identified as having the same composition and characteristics Grade is a generic paper category, such as writing, offset, cover, tag, and index paper It can also refer to the quality level of the paper; or to a mill's specific rank of paper Grain Long grain running along the length, or long side, of a sheet of paper Fibers line up parallel to the long side of the paper
A four page insert to a book that is larger than the existing page dimensions, having a fold at the outer edge that serves as a hinge, allowing two sheets to fold out from the center to the edge Also known as a foldout