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What our customer's say!

"Great Book!!!", this book is a great referece for those who want to learn the new features in .net 3.5. it is not for the beginner programmer as it uses some advancced techniques that could be confusing. It is more of a reference book than a learning book, overall it is great and covers all areas of LINQ.

"Comprehensive and well explained", After being disappointed by other books on ASP.NET was leery in purchasing another. Wishing to learn about LINQ I finally gave in and ordered this one. I'm pleasantly surprised and delighted that it actually teaches you something other than just touting the benefits versus older technology. It is so complete as opposed to other books that give you a dip in the shallow end and leave you to wonder what else there is out there.

Excellent book. Well worth the price. Get it.

"Learn LINQ = Buy this book", I am always looking for new tools to make my job as a developer easier, more efficient, allow me to write code that is more easily maintained and just make things more exciting. The problem that comes with learning these new tools (such as LINQ) is finding the time to learn them to the point that they are useful. This style of this book made it very easy to read with excellent code examples, providing me with the knowledge to get started using LINQ in my current project within a week of reading. Lastly, I was able to contact the author (with a timely response) about a question I had using LINQ in my project. Joe was friendly in his response and very approachable. Highly recommended!

"Great book, great Kindle conversion", This is a very comprehensive and well structured LINQ learning guide. It can be used as a structured tutorial or as a reference guide, as definitions and sample code for each method call are complete.

What is really nice is that this book works well in eBook (Kindle) format. I am usually reluctant to buy technical books with code listings for the Kindle, but all the listings in the text are zoomable images and easy to read in the landscape rendition.

"Bought three books on LINQ -this one is the best!", I'm an intermediate level C# programmer (I think) and have been using ADO.net with SQL-Server to build a database application for a client. When I read about LINQ earlier this year, it sounded like something too good to be true. I started with a couple of other books, but found practical explanations of getting things to work lacking. I get the impression, the authors are too far advanced and just assume we have fairly expert knowledge of some of the nuts and bolts things that are elementary to them, so they don't explain these things.
Joseph Rattz's book does not assume we know how to do a lot of this stuff. Rather he explains in detail, how to get LINQ up and running, and to actually get a query completed. I was able within an hour to run SQL Metal to generate an entity class (basically a map from SQL Server to corresponding data objects), and run some of the example queries in the book. That said, this is not a lightweight book for someone new to programming. It's just that he does an excellent job explaining a complex subject. It gets into advanced topics on LINQ and requires some knowledge of C#. If you plan to use this to work with SQL Server, you should also have some experience with that also.
Summing up, there is just something about Mr. Rattz's writing style that makes this book easy to read and understand. I find I'm actually enjoying reading this book, and I certainly can't say that about most technical books I study.

Read this reviews before You buy...

"Must have book!", No doubt about it. If you are learning/using LINQ, this is THE book to have. Author did an excellent job explaining the material and giving numerous examples, that work, about the material. Had to mention the "that work" part as I get so frustrated when I buy a book and the examples do not work. I could tell this book was a "labor of love" and he didn't just crank out a book to make $.

"Well thought out", This book is very well thought out. The author helps you understand some subtleties of relational algebra (without really saying it) and helps you think like a LINQ head. It's a different way of doing things, but he shows that if you get a basic understanding of a handful of concepts you can grow it from there.

awesome book!

"Very good book with a very bad index and no free PDF", Microsoft must be under new management, we are getting a slew of new, truly useful tools that are making pretty big strides forward for faster more enjoyable C# development and ease of maintenance. The latest technologies seem well worth taking the time to master. I find the combination of LINQ and the Sync framework couldn't have come at a better time. While the book mentions that LINQ to SQL only supports SQL Server, that is no longer true as you can also use (at least) MS SQL Server Compact Edition 3.5 (which is required for the Sync Framework). You can't use the visual object relational designer with SSCE but the book documents SQLMetal, and you can use that to create your context.

Overall I found this to be a very good book but it has a few flaws. If like me you are interested in LINQ for a current or upcoming database project here is what I would suggest. First don't start with this book, finish with it. Start with the ten excellent screencasts by Mike Taulty. Then read this book. Your reading will go much faster and you'll get a satisfyingly sated feeling. The author will probably hate me for saying this, but if you already know SQL or ADO.NET 2.0, I would suggest reading Chapters 1-3, then skim 4 and 5 just to get an overview of the operators available. Then read part 5 (Chapters 12-18) on LINQ to SQL. After you digest that I would suggest whichever topics interest you the most, then I would finish with a more thorough read of Chapters 4 and 5 on Deferred and Nondeffered operators, which in my mind are really a thoroughly documented reference section.

The reason the author will hate that, is he doesn't want readers to use LINQ for just database purposes, and he states that many times in the book. In fact, I think that is why he put the LINQ to SQL section at the end. However, he seems to have made a significant effort to make any part readable on its own, so I see no problem with skipping to the end so early.

The book doesn't really cover data binding, but there is a lot of good information on that available on the internet (the above mentioned screencasts show some of them, and an overly long video on Channel 9 with Young Joo from August 2007 shows even more).

I also have a few nit-picky things that drove me crazy. The most significant one being the amount of repetition and unedited console output. I was also none too happy that the author didn't mention that the Visual Studio Command prompt was under the START menu not an IDE menu. But then again without the author I wouldn't even have known there was a Visual Studio 2008 command prompt.

The weakest part of the book is the index, it is downright anemic. In the several weeks since I've finised the book the index has NEVER helped me find things I remember reading. If you find items of interest you better pencil them into the back cover if you want to find them again later. If one book ever needed a free PDF, this one is it, but they charge $10 for it. Maybe that is why they made the index so bad, to encourage you to fork over another $10.

That said, I also found a good half-dozen or so gems in the book that saved me significant time. Now I could tell you what those are but I think you should buy the book to find out.


"Really good book and publisher", I agree with all of the above positive reviews. Excellent book. I just wanted to comment on the publisher. This is my 3rd book(my other two were a book on WPF and C++/.Net) published by Apress and they have all been very good. I don't know if that is just dumb luck but they do an excellent job.

"Not bad", This is a great book for learning LINQ. Lots of code examples, fairly exhaustive and does well at explaining concepts. However, the first chapter must have been given special attention knowing it would be the sales pitch for the book. The rest of the book falls into a more rushed fashion, evidenced by typos (mostly in code), and sometimes condescending tone. Also, if there are two extension methods with the same signature, and one has the word Descending tacked on the end, please don't take another four pages to describe its usage. LINQ to Entities is not covered at all, and they don't claim it is, just a heads up to the potential buyer. All that said, this is overall a great book on the subject, but it could use a little polishing.