Hachette Book Group's 11% revenue increase in 2025 is, on one level, a straightforward story about the arithmetic of acquisition: the November 2024 purchase of Union Square & Co. from Barnes & Noble added a full year of revenue that was absent from the 2024 comparator. But the result carries broader significance for the competitive structure of American trade publishing, because it confirms HBG's arrival as a genuine third force alongside Penguin Random House and HarperCollins — a position that seemed improbable as recently as five years ago.

The parent company context is instructive. Lagardère Publishing reported total sales of €3.0 billion for 2025, up 4.5% over 2024 at reported rates, with profits of €312 million — a modest 0.6% improvement that reflects the ongoing investment required to integrate acquisitions and build digital and audio infrastructure. Excluding currency effects, the underlying revenue growth was 3%, with the French market up 2% in a domestic publishing environment that contracted by 1.5%. The US, by contrast, was the clear growth engine, and HBG's performance was the primary driver.

The Union Square acquisition deserves scrutiny as a strategic template. Barnes & Noble sold the imprint — known for its illustrated reference books, gift titles, and children's non-fiction — as part of its own strategic refocusing on core retail. For Hachette, the deal provided immediate revenue scale, a strong backlist in categories with durable consumer demand, and distribution synergies within HBG's existing infrastructure. The speed with which the acquisition translated into headline revenue growth suggests the integration was relatively clean.

The broader question for Lagardère Publishing is whether the French parent's ambitions outside Europe — articulated by Deputy CEO Jean-Christophe Thiery at a recent press conference as a focus on Latin America and Africa in French, English, and Spanish — can be executed with the same discipline. The African book market, Thiery suggested, is poised to 'take off,' with digital and audio formats providing a route around the logistics challenges that have historically constrained physical distribution on the continent. Whether that optimism is warranted will depend on infrastructure investment that has yet to materialise at scale.