Book: Programming Entity Framework
With the move in VS 2010 to offer domain-driven development from an Entity Framework perspective, this book is probably the best available for getting up to speed with the current Entity Framework, and its data-driven design viewpoint (Entity Data Model). As per page 15, if you want to go down the DDD route look at T4.
Page 28 provides detail of the entity framework metadata is held in three model – CSDL, MSL and SSDL. Entity SQL overview starts on page 60 – note the eSQlBlast reference on page 61. Most trading systems use Stored Procedures (SP) in a big way. so chapter 6 is particular relevant, Chapter 9, Object Services provides good pointers – ToTraceString (page 222).
One of the pains of the current Entity Framework is lack of full support for PCOC – page 248.
Chapter 14 (WCF services) and chaper 19 (custom classes) are of particular interesting from an n-tier application/business object perspective.
Page 501, performance is obvious a topic of interest once you start developing any serious application using the Entity Framework.
There is a brief mention of ADO.NET data Services on page 718 – welcome to the world of RIA 
Overall Julia’s book is a worthwhile read, the only real issues are the size of the book from the perspective commute heavyness 
, and the fact that it had C# AND VB code – which I find annoying, and is part of the reason for the thickness of the book.
Hi Matt. Glad you are finding the book useful, if a little heavy.
Having samples in both languages was important to me. It would have been more than annoying for VB programmers if it had been all C# and vice versa. In this market, printing separate books for the different languages is not at all feasible. I think you’ll find more and more authors choosing this path. So out of curiosity, which way do you swing – VB or C#?
Julie