The Bibliothèque de L’Union is a community library serving residents of L’Union and the surrounding Toulouse Métropole area. It offers a broad range of collections, with a searchable catalogue, new acquisitions, themed selections, and recommendations from librarians, readers, and partner library services. Readers can borrow and reserve documents, explore adult books and comics, and discover titles featured through participatory acquisition workshops.

The library also provides access to digital resources, including Ma BM and Medi@31, which are included with a library subscription, as well as Wi-Fi and a BiblioDrive service. Its activities include regular story-reading sessions for young children, workshops, and other events, with some activities requiring advance registration. Visitors can consult practical information online, including opening hours, registration and fees, borrowing guidance, and contact details.

The library works with the City of L’Union, Toulouse Métropole, the Haute-Garonne departmental council, and RecycLivre. It also invites community members to suggest purchases, donate books, and receive updates through its email newsletter