All major categories of book publishing, including educational texts, are considered but the focus throughout is largely on trade publishing—that is, books that are published for a general audience and sold mainly through bookstores. ###>Nous examinerons toutes les grandes catégories d'ouvrages publiés, y compris les livres pédagogiques, mais nous nous concentrerons sur les publications commerciales, c'est‑à‑dire les livres destinés à la population générale et vendus principalement dans les librairies.