A computer system for delivering a brochure, the computer system including a server and being adapted to provide and format visible information of a brochure and coded data indicative of an identity of the brochure and of at least one interactive element; the computer system further being adapted to communicate with a printer to cause substantially simultaneous printing of the visible information and the invisible information so as to produce the brochure; wherein the computer system is further adapted to receive a request for further information relating to the contents of the brochure, the request having been generated by a sensing device through interaction by the sensing device with the at least one user interactive element.