As an in-house SEO I always have work in training and explaining SEO to other folks in the company. We usually try to use existing examples of our own site how we rank, how the pages are displayed and how we can improve.
Explaining how the Page Title Tag, the Meta Description and the URL can have a big influence on the rankings and if the result is inspiring to click on is sometimes a challenge.
But today I found a perfect example of how you can simply explain it through an image:
Original picture can be found here: Thesis Tutorial | SEO for Everyone