A method and device for manufacturing the covers of a book using a surface material and cover pieces glued to it. In order to glue the cover pieces to the surface material, a device equipped with a work table is used, on top of which the surface material is positioned. The cover pieces are glued to the surface material by supporting one end of them, in the initial stage, free of the glue surface with the aid of a shelf-like support piece and commencing gluing from a point farthest from the said end.