Creating AHA! moments

For example, lately I'm repeatedly challenged with how to explain Scrum in short amount of time to someone that never heard of it before.

Which got me thinking: how do I summarise all 19 pages of Scrum Guide? And then: someone must have done this already.

So I have started looking and turns out a colleague of mine Roland Flemm has already done an excellent job: 
I think it hits bulls eye on Scrum’s spirit of the game.

How do you: summarise, store, access and transfer knowledge? Any tips and tricks you want to share?