You can draw something like this, too. It's just an exercise. It's not that tough. Start with a big pen and draw the central lines first. Draw them to be able to contain other cross-sectioned lines which are smaller. The goal is to let your mind make all the connections on the page. It's as much a mental exercise as anything else, and it proves a whole lot.
These images are like web pages. You can build a network as complicated as Stereomedia if you are able to draw something comparable. Comment with your illustrations if you have achieved this, and we can move on to web lessons.
Web lessons are available through Stereomedia at educational.htm