The exemplification, or illustration essay works by giving examples to support your argument. For the most part it is the most common essay and rhetorical type you will run into in your academic career, which isn't to say that it precludes using any of the other techniques mentioned in this course. To get a sense of how the technique works read "Illustration" from Writing for Successfrom Saylor Academy. The same book has a sample Illustration essay for you to read.
Share you thoughts on this technique with your classmates using the WEnotes comment option below. Remember that getting feedback from your classmates can be very helpful as it might lead you to see your topic from a different perspective.