The editing is absolutely atrocious. I bought this book in 2004 to help me study for a different exam. I thought the two were bound to cover similiar ground. Therefore, I can't give you much response on the topics as ultimately they were very different. Even though, some of the correct answers provided to questions on segments of reading were iffy. Another problem was that sonme of the questions were repeated. Also overall the quality of the text feels like someone just ran out copies at staples.It might be of some help, but I'ld be certain to study with another book as well.