The Microsoft XNA 4.0 Game Development Cookbook is all about what happens once you've completed the various introductory tutorials, and want to create something with a little more substance.
In this book, you'll find examples of how to flesh out some of the more complex, or initially less intuitive, pieces of what goes into a full-blown game.
Not sure what it takes to add water to your Xbox 360 Indie game? Confused about maps for your Windows Phone game? Curious over what it takes to get started using Kinect with XNA? Then this book may just be for you.