Steve Wexler has worked with ADP, Gallup, Deloitte, Convergys, Consumer Reports, The Economist, ConEd, D&B, Marist, Tradeweb, Tiffany, McKinsey & Company, and many other organizations to help them understand and visualize their data. Steve is a Tableau Zen Master, Iron Viz Champion, and Tableau Training Partner.

His presentations and training classes combine an extraordinary level of product mastery with the real-world experience gained through developing thousands of visualizations for dozens of clients. In addition to his recognized expertise in data visualization and Tableau, Steve has decades of experience as a successful instructor in all areas of computer-based technology. Steve has taught thousands of people in both large and small organizations and is known for conducting his seminars with clarity, patience, and humor.

Website: DataRevelations.com

Jeffrey A. Shaffer is Vice President of Information Technology and Analytics at Recovery Decision Science and Unifund. He is also Adjunct Professor at the University of Cincinnati, where he teaches Data Visualization and was named the 2016 Outstanding Adjunct Professor of the Year.

He is a regular speaker on the topic of data visualization, data mining, and Tableau training at conferences, symposiums, workshops, universities, and corporate training programs. He is a Tableau Zen Master, and was the winner of the 2014 Tableau Quantified Self Visualization Contest, which led him to compete in the 2014 Tableau Iron Viz Contest. His data visualization blog was on the shortlist for the 2016 Kantar Information is Beautiful Awards for Data Visualization Websites.

Website: DataPlusScience.com

Andy Cotgreave is Technical Evangelist at Tableau Software. He has over 10 years' experience in data visualization and business intelligence, first honing his skills as an analyst at the University of Oxford. Since joining Tableau in 2011, he has helped and inspired thousands of people with technical advice and ideas on how to build a data-driven culture in a business.

In 2016 he ran the MakeoverMonday (http://www.makeovermonday.co.uk/) project with Andy Kriebel, a social data project which saw over 500 people make 3,000 visualizations in one year. The project received an honourable mention in the Dataviz Project category of the 2016 Kantar Information is Beautiful Awards.

Andy has spoken at conferences around the world, including SXSW, Visualized, and Tableau's customer conferences. He writes a column for Computerworld, Living with Data (http://www.computerworld.com/blog/living-data/), as well as maintaining his own blog, GravyAnecdote.com.

Website: GravyAnecdote.com