The library card lets you take out on loan batches of documents on any subject you are working on at the centre. You can count on the library's team to advise and help you with selecting and choosing documents.
On the other hand, Biblioteques de Barcelona is preparing themed-reading and new-features guides and offers a whole series of activities promoting reading outside school hours (story-telling, young-children's and youth reading clubs etc.)
Some libraries have a Travelling Suitcases service: this is a suitcase full of interesting documents for covering the information or literary needs of students which can be left in schools. If you are interested in this, please ask about it at your reference library.