For Forbes readers, a demonstration with one of Bernard Marr’s Big Data And AI: 30 Amazing (And Free) Public Data Sources For 2018 (Forbes, Feb. 26, 2018), adds a ring of authenticity to your data. Marr and by extension, Forbes has vouched for these data sets.
Beats the hell out of opera, medieval boys choirs, or irises for your demonstration. 😉
These data sets show up everywhere but a reprint from Forbes to leave with your (hopefully) future client, sets your data set from others.
Tip: As interesting as it is, I’d skip the CERN Open Data unless you are presenting to physicists. Yes? Hint: Pick something relevant to your audience.