DG3 By Example
This is a book that learn you to use DG3 by practical examples. You start by the simplest like a page based CMS system, and end up with a system that can handle a small business with all kinds of services like, time sheets, order and invoice, CRM, blog, electronic signs and a site for writing books like this. The book starts with small components that can be reused in many different settings. The different examples in this book uses things learn in an earlier chapter, so it is smart to start at the beginning and take chapter for chapter. When done reading this book, you should have touched most of the DG3 features and technologies and be ready for the real world of DG3 development with all necessary tools in your toolbox.
If you want a reference book of the bits and bolts of DG3, read the DG3 Reference Guide instead.