Specifications include, but are not limited to: Binding Classification: 2.1.1. All binding shall meet Class A binding specifications of the American Library Association. 2.1.2. Laminar equal illustrated covers should be used where available for all books. 2.1.3. Lettering to be on both spine and front of cover of all books including Paperbacks. Books with the same title, but different levels, must designate the level (such as grade or other) and be bound in separate color bindings. All books of a given level must be of the same color. 2.1.4. Books must be checked by vendor to be sure books can be rebound without effecting the guttering of the book. If books cannot be rebound without words being in the guttering of the book they are to be returned to the District as is, at no cost.