You can get a sneak peak of some of the great work the authors did (and a little design stuff from yours truly! ;) on Head First PMP.
Edited: the sample chapter here is my absolute favourite because I had quite a hand in the design of this chapter—stick men are harder to draw than you might think… Especially when they’re on a cliff and there are bears in the area…
I haven’t linked direct to it as it’s quite a big file, but you can download a PDF of Chapter 11: “Project Risk Management: Planning for the Unknown” from the PMP page on the Head First Labs website.