“After reference books and scientific journals, electronic books represent the next level of evolution in the digital revolution. Their presence in libraries and their level of knowledge on the part of users is still low. But the development of specific collections by the publishers, the development of increasingly refined online distribution systems and the improvements in portable reading devices (e-book readers) are causing a change in this situation, along with a turnaround on the production and consumption of such documents. In Spain, recent experiences by publishing houses are related to this new market, and they will change the current publishing scene in no time. This article discusses some of them and gives an outlook of future developments in the sector.”