Written texts are and always were a repository of Mankind’s memory. Hardly replaceable, they had a unmistakable role in the period we report – not only because of the reflected testimonies, but specially by the opening to the future. Which future? The one that includes new programs, trained here and there in the old continent and, even before, at the New World, beyond Atlantic. The letters between registered booksellers in the Portuguese eighteenth century and the Société Typographique de Nêuchatel testify the assumed proselytism of some and supported by others, even if against the order.