What bookdealers really mean. A dictionary by Tom Congalton and Dan Gregory (Between the Covers), with additions from other sources
Popular term for a fine and fresh copy, but often an inadequate condition term. New books are sent to bookstores in cartons but often sustain a fair amount of rubbing in the cartons before they are unpacked, "new," from the publisher. Despite that, some books do arrive at the bookstore in "as new" condition.
A l'état neuf
Livre comme neuf.