The Estudi General Lul·lià has a significant bibliographic collection of heterogeneous themes, mainly related to the history and culture of the Balearic Islands, and with copies from various private libraries, such as those of Gerard Maria Thomàs, Josep Font i Trias, or Baltasar Coll Tomàs.

It also has a documentary collection related to the history of the Estudi General Lul·lià and the different institutions and activities that have taken place in the centre.

Currently, the bibliographic and documentary collections are in the process of organization.