Jeffrey A. Shaffer is the Director of AI Strategy, the Kirk and Jacki Perry Professor of Analytics and Assistant Professor-Educator at the University of Cincinnati in the Carl H. Lindner College of Business. He is a 2026 Google Higher Education AI Fellow and a 2026 Ronald J. Dornoff Fellow of Teaching Excellence. He was awarded the 2025 Michael L. Dean Excellence in Classroom Education and Learning Graduate Teaching Award for the Lindner College of Business, as well as the 2016 and 2021 Adjunct Faculty of the Year Awards for Operations, Business Analytics, and Information Systems. He is an active speaker at conferences, symposiums, universities, and corporate training programs on the topics of data visualization, data analytics, artificial intelligence, generative AI, and Tableau.

Mr. Shaffer previously served as the Chief Operating Officer and Vice President of Information Technology and Analytics at Unifund and Recovery Decision Science. He is one of thirty-six people in the world inducted into the Tableau Visionary Hall of Fame, hosts the award-winning podcast Chart Chat, and is the co-author of The Big Book of Dashboards and Dashboards That Deliver.

Steve Wexler is the founder and chief chart looker-atter for Data Revelations. He is also the author of The Big Picture: How to Use Data Visualization to Make Better Decisions—Faster (winner of Data Literacy’s Most Insightful Data Book) and co-author of The Big Book of Dashboards: Visualizing Your Data Using Real-World Business Scenarios and Dashboards That Deliver.

Steve has worked with ADP, Gallup, Johnson & Johnson, Deloitte, ExxonMobil, Convergys, Consumer Reports, The Economist, SurveyMonkey, Con Edison, D&B, Marist, Cornell University, Stanford University, Tradeweb, Tiffany, McKinsey & Company, and many other organizations to help them understand and visualize their data. A Tableau Visionary (Hall of Fame) and Iron Viz winner, Steve also serves on the advisory board to the Data Visualization Society and is co-host of the popular webinar series Chart Chat (winner of Data Literacy’s most interesting podcast award).

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. Steve has taught thousands of people in both large and small organizations and is known for conducting his workshops and presentations with clarity, patience, and humor.

Amanda Makulec is a data visualization designer who uses visualization, storytelling, and design thinking to transform how teams and organizations use data. She previously served as the Executive Director of the Data Visualization Society. She holds a Masters of Public Health from the Boston University School of Public Health. She worked with data in global health programs for eight years before joining Excella, where she led teams and developed user-centered data visualization products for federal, non-profit, and private sector clients. She is the co-author of Dashboards That Deliver.

Andy Cotgreave is co-author of The Big Book of Dashboards and Dashboards That Deliver. He is the host of If Data Could Talk, co-host of Chart Chat and columnist for Information Age. He has over 15 years’ experience in data visualisation and business intelligence, first honing his skills as an analyst at the University of Oxford. Andy helps customers, media and analysts across all industries see and understand their data. He has inspired thousands of people with technical advice and ideas on how to identify trends in visual analytics and develop their own data-discovery skills.