About the Author

Joshua N. Milligan has been a consultant with Teknion Data Solutions since 2004, where he currently serves as a team leader and project manager. With a strong background in software development and custom .NET solutions, he uses a blend of analytical and creative thinking in BI solutions, data visualization, and data storytelling. His years of consulting have given him hands-on experience in all aspects of the BI development cycle, including data modeling, ETL, enterprise deployment, data visualization, and dashboard design. He has worked with clients in numerous industries, including financial, healthcare, marketing, and government.

In 2014, Joshua was named a Tableau Zen Master, the highest recognition of excellence from Tableau Software. As a Tableau-accredited trainer, mentor, and leader in the online Tableau community, he is passionate about helping others gain insights into their data. He was a technical reviewer of Tableau Data Visualization Cookbook, Packt Publishing, and is currently reviewing Creating Data Stories with Tableau Public, Packt Publishing. His work has appeared multiple times on Tableau Public's Viz of the Day and Tableau's website. Joshua also shares frequent Tableau tips, tricks, and advice on his blog at www.VizPainter.com.

I owe a debt of gratitude to all those who have mentored, guided, and taught me throughout the years. My father, Stuart, opened up the world of computer programming for me when he showed me how I could use code to make the family computer do anything I could imagine. Thank you to all the individuals at Teknion Data Solutions: my colleagues, with whom I have had the privilege to collaborate on a daily basis, and the management and owners, who have made an investment in our training and growth and created an exciting place to build a career. I would also like to thank Tableau employees and members of the online community for creating an incredible place to mutually learn, share, help others, and have fun. I also owe much to the technical reviewers of this book for investing their time and expertise. Most of all, thanks to my wonderful wife, Kara, who has supported and encouraged me all along the way.