Sure, struct, short for structure, is a value type data type in C#. It is one of the key elements in C# programming, especially when dealing with a relatively small amount of data. 1. Defining Structs: You define a struct using the `struct` keyword, followed by the struct name. ```csharp public struct Employee { public int Id; public string Name; } ``` In this example, `Employee` is a struct with two fields: `Id` (an integer) and `Name` (a string). 2. Creating Structs Instances: After you have defined your struct, you can create an instance of your struct like this: ```csharp Employee employee1; ``` 3. Assigning Values to Structs: You assign values to the fields in your struct like this: ```csharp employee1.Id = 1; employee1.Name = "John Doe"; ``` In this example, we have created an instance of `Employee` and assigned it an `Id` of 1 and a `Name` of "John Doe". 4. Accessing Structs Members: To access the data in your struct, you use the instance of your struct: ```csharp Console.WriteLine("ID: {0}, Name: {1}", employee1.Id, employee1.Name); ``` 5. Structs vs Classes: Remember that unlike classes, struct is a value type which means when a struct is assigned to a new variable or passed as a method parameter, a copy of the value is made. Classes, on the other hand, are reference types and when a class instance (object) is assigned to a new variable or passed as a method parameter, a reference to the original object is made. This was a very basic introduction to structs in C# but hopefully it clarifies some core concepts.