Following the serious weakening of the public domain entailed by the royal decrees and regulations of 1665 and 1686, this memorandum was one of the first examples, if not the first, from the Parisian booksellers to describe the right of exploitation safeguarded by privileges in terms of private property. In this perspective, as the commentary will endeavour to show, it certainly anticipated in some respects the 1725 famous plea of the Parisian guild by Louis d’Héricourt, since book trade privileges became explicitly regarded essentially as a legitimate means to secure the personal labour of authors and booksellers contractually invested in the publication of a literary work. However, at the time and under a monarch such as Louis XIV, this was obviously not attempted without rhetorical precautions, not to say equivocations or contradictions. Moreover, in addition to the traditional references to the public interest, the new system supported by the Parisian booksellers in order to defend their monopolies did not yet give to authors the central place they would theoretically find with Héricourt in the Eighteenth century.