Loose-leaf paper binders and covers utilizing binder posts inserted into prepunched paper sheets have been employed for many years. For example, U.S. Pat. Nos. 243,730,560, 3,834,739 and 4,072,326 show plastic strip retainers placed at paper stack edges and integral studs in one retainer strip passed through the punched paper holes. An apparatus is provided to shear and upset the stud heads in a recess of the other retainer strip to hold the stack of punched paper sheets together. Provision is also made to fold a cover around the front and back of the book or report, including a spine portion. U.S. Pat. No. 1,841,989 shows strips of sheet metal which press against a fastener head and surround a ratchet post and wherein collars and wedges are hammered on the posts to compress the sheet metal strips and bind sheets of paper and a cover. Covers which are clamped by a series of fasteners are seen in U.S. Pat. No. 3,667,854. Self adhesive layers with removal strips to expose the adhesive have been utilized in the cover art as shown in U.S. Pat. No. 3,833,244. Wraparound covers in which one edge of the cover overlaps a fastener strip is disclosed in U.S. Pat. No. 4,139,216.