Today's $10 Deal of the Day from APress at
http://www.apress.com/9781430272076 is Pro Business Applications with Silverlight 4
"This book will guide you through the process of designing and developing
enterprise-strength business applications in Silverlight 4 and C#. You
will learn how to take advantage of the power of Silverlight to develop
rich and robust business applications, from getting started to
deployment, and everything in between."