Jon’s presentation on data visualization was fun, concise, and easy to apply to my goal of making reports on app usage more compelling and informative. His takeaways were crystal clear. After the presentation, he happily entertained my request to present the flaws of my current reports to the group, so I might make better ones going forward. A few weeks later I emailed him new reports to show how I’d tried to implement his advice, and he greeted me warmly and even replied with additional feedback so I could improve further.