My kids friggin love this guy. I describe his videos as "taking games and trying to make them work it terrible, terrible ways". My PC library is riddled with games my son bought on the basis of this man's work.
Brandon Sanderson teaching a class on SF/Fantasy writing. This is lesson 1 and if I ever get the ability to watch them all you damned well bet I'm going to watch/take it. If you watch it on YouTube they are all linked!!