This document provides information about an Open Data event taking place in Lausanne, Switzerland. It introduces the organizer, Frederic Jacobs, and provides practical information about connecting to Wi-Fi networks and using relevant hashtags on Twitter. It also outlines the agenda for the event, which includes sessions on open data topics and opportunities for participants to work together in mixed groups on projects, issues, and ideas. Finally, it lists some Swiss and international open data resources and repositories and provides five steps for success at the event.