Flow charts are a good way of describing linear and recursive processes. They are also good for teaching logic, and once you understand them for humor. Below are some of the best ones for learning to read flow charts and then for understanding ideas. The people who made these flow charts are totally awesome and you should send them money, jewelery, coffee or chocolate.
http://xkcd.com/518/
http://thoughtcatalog.com/2011/how-to-have-a-rational-discussion/
http://www.sciencebase.com/science-blog/the-fraudulent-invention-debunkifier.html
http://shouldiworkforfree.com/
http://www.toothpastefordinner.com/index.php?date=011211
