It is part of the Secrets series. This one is called Step II Secrets. It is a book that is in a question answer format. Real good study material. It is broken down into specialties and important topics. (Alcohol, Smoking, Diabetes, etc...) It is quick and easy to read and hits the important stuff. There is also other books in the Secrets series, like Medicine Secrets, Inf Dis secrets, etc..., but I didn't buy those. They are easy, because of the question answer format. I only have the Step II secrets, but didn't have time to read it though, but I did skim it after the test, and I wish I would have.