Colleen Hoover (born Margaret Colleen Fennell; December 11, 1979) is an American author who primarily writes novels in the romance and young adult fiction genres.[2][1] She is best known for her 2016 romance novel, It Ends with Us. Many of her works were self-published, before being picked up by a publishing house.[2][3] As of October 2022, Hoover has sold approximately 20 million books.[4] She was named one of the 100 most influential people in the world by Time magazine in 2023.[5]