After coding WPF for some years now, I came to the conclusion that to truly understand WPF I needed to see the "whole picture." In some instances, for practical reasons, such as figuring out why thing did not happen as I expected. For example: "Why doesn't this object accept dependency-property? Ah. It isn't derived from dependency-object." Or strange behaviors from objects that I eventually figured out derived from "Freezable," and so on. But for more abstract reasons, I wanted to understand the framework as a whole.
So I searched the internet and only found this poster which is very nice, but it is only partial and not up-to-date. So I turned to my company's MS-customer support for help. After a couple of months they gave me an answer: "We can't help, we don't have such a poster."
The last thing left for me to do was to create this poster myself (not manually, but by writing an app that produces it). I had a vacant 1.70 x 2.30 meter wall in my office so my task was to fit this very large schema into it.
After I finished and was content with the outcome, I thought about sharing it with other WPF programmers out there. Although it's an unusual size (to say the least) I truly believe that it is a great tool for any WPF programmer even if on a monitor.