Hachette Book Group is a privately owned company headquartered in the US, founded in 2006, with approximately 1,360 employees. The company operates as a U.S. trade publisher specializing in book and periodical publishing, and functions as a division of the trade and educational book publisher Hachette Livre.
Hachette Book Group's revenue climbed 11% in 2025, buoyed primarily by its November 2024 acquisition of Union Square from Barnes & Noble, parent company Lagardère reported on February 19, 2026. Excluding the impact of the acquisition, sales for the year still increased by 3% compared to 2024. Previously, on February 6, 2026, Hachette Book Group and Cengage Group submitted a court response to Google's January 29 opposition in the case *In re Google Generative AI Copyright Litigation*. This action came as part of their motion to intervene, according to an announcement from the Association of American Publishers (AAP).
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