This was one of the books required for my Engineering Ethics class when I was in school. Thankfully, it is not as dense as a philosophy textbook would be, but it does distill Aristotle's teachings into very easily digestible parts. The book is pretty short (at least when compared to a textbook), just under 200 pages, and while I would not say it is as quick a read as a novel, it is not so dense that it takes a long time to get through. I think many people will get the book because it is required for a class, but it is something that someone who is just interested in philosophy without getting too bogged down in the material could enjoy reading.
