St. Martin's Press is a prominent book publishing imprint and the largest division of Macmillan Publishers, operating under the global Holtzbrinck Publishing Group. Founded in 1952 in London as a distributor of Macmillan titles, it is now headquartered in the Equitable Building in Manhattan, New York City. The press has evolved significantly over the decades, particularly in the last 30 years, into one of the seven largest publishers in the United States. It publishes approximately 700 titles annually across six imprints, with a focus on commercial fiction, nonfiction, and political books, and is known for nurturing emerging authors and maintaining a diverse and respected catalog. Key leadership includes Editor in Chief George Witte, Publisher Jennifer Enderlin (appointed in 2016), and Chairman Sally Richardson (appointed in 2018). While primarily operating in the U.S., it retains historical ties to the UK. In recent years, it has faced criticism regarding diversity in publishing, with Arab and Muslim creators reporting difficulties in obtaining promotional support, leading to the formation of the community group Readers for Accountability and a marketing boycott modeled after the HarperCollins union strike.