While infographics might be taking over our Facebook feeds, there is another layer of understanding how to effectively use data to explore complex information spaces. This talk will cover key findings from perception studies and visualization research and will examine techniques for evaluating and understanding visualizations. Learn why a rainbow colormap can make you believe the wrong thing about your data – and why a 3D pie chart causes visualizers to wince in pain. You’ll come away with tools and techniques that let you look more deeply into your data and that will help you make your next dataset make more sense.