[3] He entered the selected circle of the founder of the eighteenth century first press empire created by Charles-Joseph Panckoucke and Henri Agasse de Cresne.

This northern French tradition will continue through Jean Prouvost (fr), founder of the press group Paris Match and Marie Claire.

"[4] In 1759, Jean-Louis de Boubers had allegedly been involved in the conflict between Pierre Rousseau (fr) and Liege authorities: he was ordered "to migrate from the city within three times twenty four hours".

Six years later he was responsible of the most prestigious editions of the Jean-Jacques Rousseau complete works in 12 volumes at a London address.

Granted the privilege of Théâtre Royal de la Monnaie bookseller, he published plays and opéras comiques performed from 1777 to 1799.