PhotoViz is a presentation, curriculum and book about the overlap between photography and data visualization. From a talk at Webstock, the concept matured into a class at NYU’s ITP before being formalized and published by Gestalten. PhotoViz argues that in a world overwhelmed with both data and photography, there is an increased need for both aggregating photos and for making data stories more evocative. This collection is composed of projects based on photography that demonstrate patterns, reveal the invisible and tell more descriptive stories than either traditional photography or dataviz.