Hachette Book Group (HBG) is a leading US trade publisher and a division of the third largest trade and educational book publisher in the world, Hachette Livre. A global publishing company based in France, Hachette Livre is a subsidiary of the French media company, Lagardère. HBG is headquartered in New York, with offices in Boston, MA; Lebanon, IN; Nashville, TN; Boulder, CO; Philadelphia, PA; and Berkeley, CA. HBG also owns Hachette Book Group Canada, Inc., a marketing and publicity company based in Toronto, ON.

In one year, HBG publishes approximately 900+ adult books (including 50-100 digital-only titles), 250+ books for young readers, and 400 audio book titles (including both physical and downloadable-only titles). In 2015, the company had 183 works on the New York Times bestseller list, 34 of which reached #1.