The fifteenth conference in the Vacuum Ultraviolet Radiation Physics series (VUV XV) took place in Berlin, Germany, from July 29th to August 3rd, 2007. This conference series began in 1962 in Los Angeles with the aim of encompassing theoretical as well as experimental studies of the interaction of ultraviolet and soft X-ray radiation with matter. In this year's VUV conference, more than 520 participants from 32 countries gathered in the Konzerthaus am Gendarmenmarkt, a famous concert hall right in the historic center of Berlin, to report on their scientific results and to meet old friends. The conference program consisted of 89 plenary, invited and contributed talks. Since young scientists are the target audience of the VUV-series, more than 450 contributions were presented as posters.