This book was like reading straight from MSDN. Just a bunch of dry method signatures and simple examples. It makes for a good reference book, I guess, but isn't that why we have MSDN? I expect a book to provide more information, context, guidelines, and best practices.
Also, the author acknowledges in the first chapter that most developers prefer the LINQ query syntax rather than the standard C# dot notation, yet he then goes on to use the dot notation exclusively throughout the book. Thus, the developer is left to figure out how to translate the book's code samples into the preferred query syntax.