This document summarizes a presentation on open data given on June 22, 2012 in Trieste, Italy. It discusses key principles of open data including being complete, primary, timely, accessible, machine readable, non-discriminatory, using open standards and licenses. It outlines relevant EU directives and notes the potential economic impact of open data in billions of Euros per year. It identifies barriers like fragmentation and lack of use and proposes solutions like networks, community building, and looking beyond apps to uses like business intelligence, ambient displays, physical products, policy implementation and quality of services.