After completing the chapters you should feel pretty confident on the material. It goes right a long with the chapter in the book so you can look up the answers if you don't know. It sorta stinks tho that you have to get on the website to look up the answers if want. I had (along with a few other people in my class) problems getting access to the website. It's suppose to be free when you buy the book but every time I would try it would ask for my credit card so I skipped on that part. But over all it's a study guide not anything you wouldn't expect.