A label assembly comprises a support sheet of a paper material defining opposite surfaces, an adhesive coating applied to one side of the support sheet, and a printing paper defining opposite front and rear surfaces. The rear surface of the printing paper is releasably fixed to the support sheet in facial contact therewith through the adhesive coating and the printing paper is divided into individual paper labels or paper tags which are individually removable from the support sheet. The label assembly constitutes a label assembly which is readily printable in a laser jet or any similar printing machine such as an ink jet printer or a typewriter which label system consequently rendering it possible to provide a printing on a specific label for identifying a lever arch file or ring binder by means of the label assembly.