Purpose -This study aims to explore the current presence of e-books in the collections of Spanish academic libraries, from the viewpoint of the contents on offer. Design/methodology/approach -Exploration of the library web sites was undertaken in order to gauge the level of presence of packages that distribute electronic books. In evaluating the extent of content available, the data recorded were compared with those derived from another research carried out in 2004. Similarly, an approximate indication of the topic areas with greatest representation was attempted, distinguishing multi-disciplinary suppliers from those specializing in one field. Findings -Out of the 50 existing universities 36 support the subscription of at least one collection of electronic books. The universities of the communities of Andalusia, Catalonia and Valencia are those that have reached a greater implementation of e-books. There is a considerable diversity -many universities have subscribed to collections specializing in literature and in the field of engineering. The main multi-disciplinary collections purchased by libraries are E-libro and NetLibrary. Practical implications -This is a sector that is definitely taking off in Spain and will require progressive acceptance on the part of the academic community. Librarians have the responsibility to aid their users in understanding the growing complexity of the information market and the increasing range of resources available for research. Originality/value -The research is a necessary approach to the integration of collections of e-books into Spanish public universities. Encouraging the use of monographs in electronic format takes on great importance, when it is borne in mind that e-books will have a crucial role in the new model for education advocated by the European Higher Education Area (EHEA).