How Do You Illustrate A Ph.D.?

Or more accurately, how do you illustrate the process leading to a Ph.D. and what that degree means in the scheme of things.

Below is a reproduction of "The Illustrated Guide to a Ph.D." by Matt Might.  He has a website chockfull of lots of information for the graduate student, from how to get into graduate school in the first place to how to get a great reference letter.  There is even advice for those of you who have managed to graduate and get a job.

Here's the guide, which is published under a Creative Commons Attribution-NonCommercial 2.5 License (meaning that you can use and modify for non-commercial purposes, but need to attribute the author).