You would use the Excelsior study guide provided for each exam (free to print off), which has a list of recommended books and articles. You can buy the books from anywhere (Excelsior has their own bookstore), I've always had good luck with used textbooks from Amazon
... I've even lucked out and found one of my books through Ebay from the goodwill store for $10!
You never know what you'll find unless you look... I've read on here of some RN students who just used the study guide and studygroup101 practice material (www.studygroup101.com
) and passed their exams just fine. Personally, I found it easier with the books. Also, I recommend the Excelsior practice exams that are offered with each of their exams (they are $75 each, and worth every penny!). IDK on the gen ed courses offered through excelsior, I haven't taken any of them.