Mariner Books, originally an imprint of HMH Books,^[1] was established in 1997 as a publisher of fiction, non-fiction, and poetry in trade paperback. Mariner is also the publisher of the Harvest backlist, formerly published by Harcourt Brace/Harcourt Brace Jovanovich.^[2] HarperCollins bought HMH in May 2021 for US$349 million.^[3] As of fall 2021, Mariner Books was listed as an imprint of HarperCollins.