Mass market paperbacks are discontinued by ReaderLink

ReaderLink, the largest distributor of hardcover, trade, and paperback books to booksellers in North America, stopped distributing mass market paperbacks at the end of 2025.

Mass-market paperbacks are usually about 5-by-7 inches, printed on lower-quality materials, and designed with affordability in mind. Trade paperbacks, on the other hand, are a bit larger and use higher-quality paper, making them more durable.