Have you already got your copy of „Mastering XPages: A Step-by-Step Guide to XPages Application Development and the XSP Language“ yet? I’ve read the fist chapters and the only thing I can say: STRONGLY RECOMMENDED.
So if you do not know where to get this book, here are some links:
You do not live in any of the countries mentioned? There will be an Amazon or other bookstore near you selling this book. So do not hesitate and get your copy. It’s definitely worth it!