Gallimard’s centenary was widely celebrated with numerous publications and exhibitions in 2010 - 2011. Gallimard's most popular authors have been Camus (with 29 million copies, including 10 million for L’Etranger (The Stranger), Antoine de Staint Exupery (26.3 million copies, including 13 million of Le Petit Prince (The Little Prince), and J.K. Rowling (26 million copies for the seven volumes of Harry Potter).
Groupe Gallimard controls a majority stake in the following publishing houses: Denoël, Mercure de France, Gallimard Loisirs (tourist guides), Gallimard Jeunesse (youth), POL, Éditions de la Table Ronde, Futuropolis, Verticlaes, Alternatives and others, as well as in the distribution services Centre de Diffusion de l'Édition, Sofedis, SODIS and France Export Diffusion.
Gallimard also owns six bookstores, including Le Divan (Paris), Librairie Kléber (Strasbourg) and Librairie Gallimard (Paris). Gallimard also has a Canadian subsidiary, Gallimard Limitée, based in Montreal. Gallimard publishes roughly 1,500 titles annually and maintains a backlist of more than 20,000.
According to publishersweekly.com