Joshua N. Milligan is a five-time Tableau Zen Master, the highest recognition of excellence from Tableau Software for masters and teachers of Tableau and collaborators within the community. He was one of three Iron Viz Global finalists in 2017. He is passionate in serving others through data visualization and analytics. As a consultant with Teknion Data Solutions since 2004, he has extensive real-world experience across many industries. In addition to authoring every edition of Learning Tableau, he was a technical reviewer for Tableau Data Visualization Cookbook and Creating Data Stories with Tableau Public. He shares Tableau and Tableau Prep tips on VizPainter and his Twitter handle is @VizPainter. He lives with his family in Tulsa.