Guillermo is the lead of the Scientific Visualization and storytelling research line at the Visualization Group of the Barcelona Supercomputing Center. In this position he creates compelling and informative data visualizations, with the primary aim of communicating science in a clear, rigorous, and appealing way. Over the last years, he has directed several scientific dissemination short films based on data visualizations, as well as participated in other formats of data visualizations: interactive applications, dashboards, and infographics. He has also been a lecturer and trainer in several workshops, Graduate, and Masters's programs over the years. He is currently Associate Professor of Data Visualization at the Universitat Autonoma de Barcelona.