(under subclass 45) Device wherein the device includes one or more components which secures: (1) a sheet folded upon itself which component or components cooperates with the fold juncture and either (a) passes through the thickness dimension thereof at the juncture of the fold, (b) extends along the juncture of the fold, or (c) both (a) and (b) above; (2) a book to the device by cooperation with a folded sheet element thereof in a manner set forth in 1, above; or (3) a book to the device which component(s) is disposed between adjacent pages of the book at their bound margins.
