Books that are only available for purchase second hand, due to the Publisher's exhausted supply.

(OP, OOP) A book no longer available from the publisher. It is no longer being printed and no new copies remain available for sale.

Materials are not obtainable through the regular market channels because the publishers stock is exhausted. One may try to obtain out-of-print works through friends, used book dealers, inter library loan, and advertisements.

A book no longer being produced

Publishers declare books out-of-print generally when they have run out of stock of the title and don't intend to reprint.