I've just completed issue #3 of Curriculum Comics! This issue is on the subject of discipline. This series of comics have all been made as part of my pursuit to get my PhD in Curriculum and Teaching. This is how I make them. I choose a topic for a final project for each course. Then I research that topic. I read everything I can find on the subject. While I'm reading, ideas come to mind. I make some sketches here and there. Then I put it all together in a way that presents what I've learned and reflected on.
So there's a lot of truth and facts in each one, but they're presented (hopefully) in a humorous way.