At some point in your software development career, you may be called upon to produce a graph or a chart. Delivering on even a simple request can be remarkably complex. How much data is there and where does it live? What kind of chart should you use? Should the chart be rendered on a server or on the client? What kind of clients should you support, and what are the consequences of that choice? This course introduces every aspect of visualization, from story, to numbers, to architecture, to code.