The invention concerns a method for diffusing data contained in a computer database (2) in a form that can be easily transported and handled by a user (5). The method comprises steps which consist in: breaking down the data contained in the base (1) into units comprising each a predetermined number of signs; transmitting said units, in particular via a server (2) and a communication network (6), to a computer equipment (3) connected to a printer (3b); downloading into said equipment (3), in particular via said network (6), printing software means (2a) for printing with said printer (3b) a memo (7) in the form of a booklet of four pages. Thus the user (5) can access online said units, select those containing data of interest to him and command the printing thereof in the form of a booklet of four pages which can be easily carried.