Digest size
Digest size is a magazine size, smaller than a conventional or "journal size" magazine but larger than a standard paperback book, approximately 14 cm × 21 cm (5 1⁄2 by 8 1⁄4 inches), but can also be 13.65 cm × 21.27 cm (5 3⁄8 by 8 3⁄8 inches) and 14 cm × 19 cm (5 1⁄2 by 7 1⁄2 inches). These sizes have evolved from the printing press operation end. Some printing presses refer to digest-size as a "catalog size," such as that used by Avon Products when selling house to house. The digest format was considered to be a convenient size for readers to tote around or to leave on the coffee table within easy reach.
The most famous digest-sized magazine is Reader's Digest, from which the size appears to have been named.TV Guide also used the format from its inception in 1953 until 2005. CoffeeHouse Digest is a national magazine distributed free-of-charge at coffeehouses throughout the United States. Bird Watcher's Digest is an international magazine which has retained the digest size since its creation in 1978.
