25 years teaching HCI in UdL

This work shows the evolution of teaching HCI in the university studies of computer engineering at the University of Lleida. The progress is described in terms of the content and the teaching methodologies based on the experience acquired during the last 25 years. The article details the changes made in the different degrees, from the methodology to the content perspective. The intent is to provide a reference document that can be useful for the teaching community interested in the Human-Computer Interaction discipline.