Windows Phone 7 Silverlight Cookbook by Jr. Robb Schiefer

The book is written in a cookbook style, presenting examples in the style of recipes, allowing you to go directly to your topic of interest, or follow topics throughout a chapter to gain in-depth knowledge. All levels of developers and designers will be able to utilize this book. The language and examples are written for beginners but there are plenty of deeper concepts to explore and code to master.