Bestselling books share held by leading book publishers in the U.S. 2019-2021
In 2021, the Big Five publishers in the United States held 77.4 percent of positions on the bestselling adult paperback list, down from 79 percent in the previous year, meaning that more of the bestselling adult paperbacks in 2021 came from independent publishers, than majors. Whilst the Big Five lost some ground, majors still accounted for the majority of all bestselling hardcover and paperback books in the United States each year, with Penguin Random House commanding the highest share.