Generics in C# is a very powerful feature that reduces code duplication, makes the program more structured, and provides the functionality of extension. Some of the important data structures are created based on the concept of generics, for example, List (collection) is a generic type in C#. This is one of the most heavily-used data structures in modern-day development.

In the next chapter, we are going to learn how to design and model our software using diagrams for better communication. When developing a software if the software design is not clearly communicated to the developers, there is a high likelihood that the software will not serve the purpose it was built for. Consequently, understanding important models and diagrams is very important.