Design is a Search Problem [video]
youtube.com
youtube.com
However, it seemed like the talk stopped after the intro, then it spent 30 minutes showcasing some odds and ends from his past work.
Design is not hard to do, but it's hard to master. It takes time, a lot of time. But once you get it then there's not much else to learn. There are design patterns repeating themselves, just like math formulas and theorems.