This is the latest little sketchbook I’m carrying around for the occasional moment to draw. The theme of the last one was Object Oriented, and it was a little brown book with sketches of objects drawn in brown ink. For this little black book I wanted a different theme, ideally playing off of another computer science term. Hence: Undefined Variables.

I’m trying out a more elaborate ruleset on this one. I didn’t really know whether it was working until I’d gotten four or five of these done. The ruleset is this:

1. Draw a scene of the objects in front of me and pick one object to cut out, leaving only the outline of the space where it would be.
2. Instead of drawing the true background, fill it with a nearby pattern.

Here’s the first quarter or so of the book.