Make sure to read:

• an example from a student writer, Alexander Eberhart, on “Ethos, Pathos, and Logos in Television Commercials,” from Excelsior College’s OWL
• an example of classification and division from professional writer Krystal D’Costa, written for Scientific American‘s blog, on “Why Don’t People Return Their Shopping Carts?”  This article is interesting, as it blends classification and division and cause and effect.
• an example of classification and division from professional writer Keith Rosen, “The Seven Types of Managers – Where Do You Stand?”

Note that although Rosen’s sample is written as an article and not an academic essay, Rosen still has a working thesis and topic sentences providing an assertion about each type of manager (the topic sentences are not the numbered items, but are the first sentences of each category). To become an academic essay, the topic sentences and support would be developed further about each type of manager, and the headings would be deleted in favor of those topic sentences

Additional samples:

• another student sample and multiple professional examples of Classification and Division essays in the text, Writing for Success