Styles and Control Templates

Very effective start example to create step by step simple calculator and tictactoe. It will help to develop skills in using styles and templates in XAML as well
Chapter # 5 from Windows Presentation Foundation from O’Reilly publisher still can buy the book but if not can download from here.

Ensured code quality in multi-threaded Applications

How to Eliminate Concurrency Defects with Static Analysis
by Ben Chelf, Coverity CTO

DEALING WITH DIVERSITY: UNDERSTANDING WCF COMMUNICATION OPTIONS IN THE .NET FRAMEWORK 3.5

David Chappell is Principal of Chappell & Associates (www.davidchappell.com) in San Francisco, California. Through his speaking, writing, and consulting, he helps information technology professionals around the world understand, use, and make better decisions about enterprise software. You can download this document from here.