There are quite a lot of books out there about customizing and configuring Dynamics CRM, a quite recent one is written by a MVP colleague of mine Neil Benson, a nice British guy now days living in California.
The book's title, Microsoft Dynamics CRM 2011 Customization & Configuration (MB2-866) Certification Guide, really tells what it is all about, trying to get you ready for the certification, which is a something of task as these are not at all easy. A good book is a good guide, so running questions is if it is a good book or not, and in general it is a very good book. Benson is, and I know this personally, very skilled, and this shows, and the book is concise and to the point. There are just a two things I would like to see fixed in future editions of the book and that is that the final two chapters (charts and solutions) are made to the same level of excellence as the rest of the book. I recommend this book to all people trying to nail the certificate!
MVP, CEO and owner at CRM-konsulterna AB