Hachette Book Group (HBG) is a publishing company owned by Hachette Livre, the largest publishing company in France, and the third largest trade and educational publisher in the world. Hachette Livre is a wholly owned subsidiary of Lagardère Group. HBG was formed when Hachette Livre purchased the Time Warner Book Group from Time Warner on March 31, 2006. Its headquarters are located at 1290 Avenue of the Americas, Midtown Manhattan, New York City. Hachette is considered one of the big-five publishing companies, along with Holtzbrinck/Macmillan, Penguin Random House, HarperCollins, and Simon & Schuster. Each year HBG publishes around 800 adult books, 200 young adult and childrens books and 300 audio books. The earliest publisher to eventually become part of the Hachette Book Group was Little, Brown and Company, founded in 1837, acquired by Time Inc. in 1968. Warner Communications had acquired the Paperback Library in 1970 to form Warner Books. In 1982, CBS Publications sold off Popular Library to Warner. In April 1985, Warner Books relaunched Popular Library starting out with five other books plus the reprint of Question of Upbringing continuing each month with the follow volumes from A Dance to the Music of Time series by Anthony Powell. Also, two books would be issued per month from Populars new imprint, Questar, for science fiction.