Libraries use binding if they have a collection of works of national heritage to preserve. But they also use it for modern books which are frequently consulted and so need to be consolidated. Paperback books do not have a hard cover and repeated uses weaken them. In addition, the pages of these books are often simply glued together, and frequent openings cause them to come apart easily. Instead of buying the same book three or four times if it is much sought after by borrowers, they might as well strengthen it as soon as they buy it, in order to prevent future damage.
Notarial offices preserve their minutes from meetings and a good binding guarantees their durability over time.
The municipal and departmental archives must preserve the heritage documents that are entrusted to them and binding them contributes to this mission.