Dr. Salvador Sanchez-Alonso obtained a university degree in Computer Science from the Pontifical University of Salamanca (Spain) in 1997, and a PhD. in Computing in 2005 from the Polytechnic University of Madrid (Spain). He has worked as an assistant professor at the Pontifical University of Salamanca from 1997 to 2000 and again from 2002 to 2005. He has also worked as a software engineer at a software solutions company during 2000 and 2001. He is currently an associate professor of the Computer Science Department of University of Alcalá (Spain). His research interests include Social Network Analysis, Technology enhanced learning, Learning Objects Metadata, Ontologies, Blockchain and Web Engineering.