I was very confused at first. But after many days and hours of research, I found that Excelsior was my best choice. Excelsior was designated by the National Leauge for Nursing (NLN), center of excellence in Nursing education. They will recommend books to buy, but you can buy any book from anywhere that you feel comfortable with to help you pass the course. There is also an excellent support group on yahoo for Excelsior nursing students which I feel anyone would find extremely helpful.