Bibliographie instructive, ou Notice de quelques livres rares, singuliers & difficiles à trouver, avec des notes historiques, pour connoître & distinguer les différentes éditions, & leur valeur dans le commerce

First edition, describing 829 entries.

Contemporary half calf, spine with five raised bands showing traces of rubbing, brown calf lettering-piece, marbled paper boards, two small blue spots on the upper cover, wear to the edges, corners softened, red edges, early shelf label pasted at the head of a pastedown.

A few marginal spots, not affecting the text.

Born in Antwerp to a family of Spanish origin, Jean-François de Los Rios (1727–1820) practised as a bookseller in Paris (1745), then in Lyon (1760), where—despite opposition—he was entrusted with the conduct of public book auctions. He was the one who purchased the Jesuit college library after the suppression of the Order.

He left Lyon only in 1812 and died in Mechelen, nearly a centenarian.