The Library uses two different systems to organize its resources. One is suited to the various subject areas involved in the studies of Theology, Canon Law, and Philosophy, and is recognizable by a combination of letters (identifying the discipline) and numbers (identifying the volume's placement on the shelf).

The other is the Dewey Decimal System, used to organize the materials involved in the studies of Social Communications and the other humanistic disciplines.

• To see a list of all titles found within a specific collection, click on the list of collections.
• If you already know to which collection your book belongs, click on the virtual bookshelf to see its exact position on the shelf.
• To find out which room your book is located in, click on the Library Maps.