An explanation of the Facade, Adapter and Composite design patterns and their corresponding purposes. Hey! I loved making this video. Much better by contrast to my last video (Singleton) which even *I* found a bore (plus my throat was sore). I hope pretty soon I'll be really good at this, without looking either pathetic or boring, which really is the goal :) I make a mention of my UML tutorial. Here it is: www.youtube.com That link is a two-parter, so be sure to watch part 2 as well.