The Book, The Training

Julie Lerman is recognized as the foremost expert outside of Microsoft on Microsoft's ADO.NET Entity Framework.

Julie is available to mentor your company whether you are trying to choose a data access platform or are ready to implement Entity Framework into your architecture.

Reviews of Programming Entity Framework, 1st Edition:

"... extract real value from the EF now. "

Danny Simmons, Dev Manager for the Entity Framework Team

Programming Entity Framework is one of the best technical books I've seen in quite a long time.
Jesse Liberty, Silverlight Development Community Liaison and Author
Julie has done an amazingly comprehensive job covering all aspects of using the ADO.NET Entity Framework. This is sure to become the canonical reference book on the subject.
Bob Beauchemin, Developer Skills Partner, SQLskills
"Whatever your view of the technology, though, you need to get this book if you care at all about the area." read full review
David Chappell, .NET Industry Guru

"One of the best ways to learn about the Entity Framework..." read full review
Scott Mitchell, MSDN Magazine, July 2009


New book(s) status

Wednesday, November 09 2011        

Rowan and are are doing double duty this week as we review the proof for the Code First book (Programming Entity Framework: Code First) and write chapters for the next book, Programming Entity Framework: DbContext. The Code First book is already listed on O’Reilly’s website (


we have A book cover!

Sunday, October 23 2011        

Although I did see early versions, I just happened to notice that the O’Reilly Media page for the new book ( Programming Entity Framework Code First ) now has the book cover image on it.  ...


Code first book status

Thursday, October 20 2011        

Rowan and I have mainly wrapped up the Programming Entity Framework Code First book. It is in production and we’ll have one last chance to review the proof sometime in the next week or so before it goes to press. The book ended up at 150 pages using OReilly’s styling in our Word documents. I’m not sure...


Teaching a 5-day Workshop (Entity Framework Boot Camp) Oct 3-7 in Boston

Tuesday, August 16 2011        

I’m excited about embarking on  my first full-week workshop. Until now, I have done a number of one-day workshops but I have always felt that I needed more time. There’s so much to share! Maybe five days will be enough? The workshop will be in Boston (Waltham, to be exact) the first week of October...


Chapter 27 Samples Available

Sunday, October 03 2010        
I’ve just posted the solution for Chapter 27, Building Layered Web Applications on the Downloads page of this site.

now on the kindle

Wednesday, September 22 2010        

Starting today, you can now purchase both 1st and 2nd editions of Programming Entity Framework on Amazon for your Kindle . As far as I know this is currently in the U.S. only. You can also get PDFs, Mobi (for kindle), ePub and DAISY directly from the publisher


Chapter 24 download available

Tuesday, September 21 2010        
I’ve just posted the solution for Chapter 24, Building Persistence Ignorant, Testable Applications on the Downloads page of this site.

corrected figure captions and numbers for Chapter 14

Thursday, September 16 2010        

During the final production stages of the book, I decided to add in the section, Mapping Unique Foreign Keys, into Chapter 14. This came with two new figures. Somehow the person who did this task (editing was by this time out of my hands) must have gotten confused and inserted the images in multiple...


Programming Entity Framework e-book for $9.99 today only!

Monday, August 30 2010        

O’Reilly Media has placed the new edition of my book available in their “Deal of the Day” program today. YOu can get the ebook version for only $9.99. That’s TODAY only though: Monday August 30, 2010. Go to and use the discount code DDPEF...


Chapter List for Programming Entity Framework 2nd Edition

Saturday, August 21 2010        

Programming Entity Framework, Second Edition, focuses on two ways for you to learn. If you learn best by example, you’ll find many walkthroughs and code samples throughout the book; if you’re always looking for the big picture, you’ll also find chapters that dive deep into conceptual information. I have...