Gain insights into LINQ in C#, learn about lambda expressions, explore common LINQ methods, avoid pitfalls, and refactor code to be more expressive and efficient.

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LINQ is the best feature in C#. If you’re interested in writing more expressive code to work with collections, this course is for you. In this course, you will learn about what LINQ is and what lambda expressions are. You will learn the most common LINQ methods and some common pitfalls to avoid when using LINQ. You will also write your first methods using LINQ and use LINQ to refactor some common constructs.

Getting Started with LINQ in C#

Do you remember how in [our first lesson](https://www.educative.io/courses/getting-started-linq-c-sharp/what-is-linq) we said LINQ was a "set of methods," but the official documentation says "set of technologies"? In this lesson, we will get into that distinction.

# How to use LINQ query syntax

Up to this point, we have seen LINQ methods as extension methods---`Where`, `Select`, and `OrderBy`, among others. But we could also use LINQ as language-level query syntax.

The code below shows how to find our favorite movies using language-level query syntax.

Getting Started

LINQ Method: Where

Common LINQ Methods

Syntax & Pitfalls

Refactor with LINQ

What's New in LINQ?

Wrap-up!

Query-like Syntax

How to use LINQ query syntax