Like another poster said, they are good if you have multiple-choice tests. I ordered them for my upcoming A&P classes. They go in depth, and they make for really good review, especially, I'm figuring, before tests.
They may look cheap in the picture on Amazon, but their actually pretty good quality (the paper is like really strong red construction paper) and they have a clear plastic cover. My only problem w/ these study guides is that they have the answers to the questions right under the questions, so you have to cover that up w/ your hand if you really, really want to test yourself like a real test. But, I guess it would be annoying to have to constantly look in the back for the answers (like in most text books).
I (like all pre-nursing students lol) must get an A in these classes, so I'm happy for all of the A&P study helpers I can find. I plan on getting the Microbio one, so I guess I'm saying I totally recommend these study guides. Good luck to us all in our A&P classes!