Created by author and free to download, LINQPad will not only help you learn LINQ, it will have you thinking in LINQ. This reference explains: LINQ key concepts, such as deferred execution, iterator chaining, and conclusion type lambda expressions The differences between local demand and construed in C # 3.0 's query syntax in detail-including many generators, joining, grouping, query continuations, and more Query syntax versus lambda syntax, and query syntax Composition and projection strategies for complex queries All of LINQ operators had 40-plus query How to write efficient LINQ to SQL queries How to build expression trees from scratch All of LINQ to XML types and their advanced use LINQ promises to be the locus ecosystem that evolved over the years to come. This booklet gives you a big head start. "The authors built a tool (LINQPad) that lets you experiment with LINQ interactively in a way that the designers of LINQ itself does not support, and the instrument has all sorts of interesting features that LINQ, SQL and Regular Expression programmers together will want to use regularly long after they've read the book. "