Seasoned,
A goal is not necessary the same as your purpose. Your purpose tells you what you want from the book. Your goal could be just to get information from the book. Your purpose tells you what information that is.
Yes, you could argue that you can use them interchangebly, but I'm trying to help you out. This is from experience, not just random rambling. You can either take the advice or not take it.
Or better yet, try it out for yourself. Test it, play with it. See what works best for you.
-JackTuff13
