Set of covers for binding books, albums, guides and the like, comprising two covers is attached, on its internal surfaces, the end sections of a sheet in the form of a zig-zag folded strip, characterized in that the two covers mentioned are related each other by means of at least two joints, located one on each of the longitudinal edges or spines of the binding, whose articulations define axes of rotation parallel to said ridges and are constituted by means of crimps formed from the longitudinal edges of the caps and are easily separable, so that by separating the linkers corresponding to the articulation or joints located on one of the spines of the binding, the crimping or opposite linkers act as hinges to allow the opening of the aforementioned binding on the corresponding side. (Machine-translation by Google Translate, not legally binding)
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