The articles in this special section focus on scientific visualization and information technology. Visual communication can provide a method to make information known or understandable to the general public. Visual communication in public spaces, such as museums, science centers, and mainstream media, is gaining momentum driven by the success of interactive visualization in exploration of scientific data. We are now seeing different installations and specific tools to convey knowledge through interactive and exploratory visual communication in a wide variety of settings. For this Special Issue, we solicited papers describing work based on visualization in public spaces from both a technology and methodology perspective.