The aspects of reproduction of a data representation depend on the nature of the representation: is it analogue (a paper map, a mock-up) or is it digital? In the case of a paper map, its digitalisation with high fidelity is an essential step. With a source in digital form, reproduction can be a matter of the right printer. Alternatively, the source could be disseminated as a file or as a web service. If representations are dynamic and/or interactive the possibilities depend on the construction of the representation. The ease of dissemination of digital files should not result in copyright breach. Aspects: Digitalization techniques for analogue sources, Printing ( 2D, 3D), Dissemination ways, Construction of the data representation, User needs specification, Copyright issues