Running software isn't all about code, some buttons, and some user interaction. There is much more to it. One of the key elements is data. Data is always data; information a user can see and manage. But also something you, the developer, can work with. But the way we can save that data is a whole different story. Where do you save information? How do you retrieve it again? How do you make sure the data is saved? How can my mobile app reach data all over the world? For this, we use (SQL) databases. While Entity Framework is really popular these days I believe it is important to know and understand the basics of the underlying system of Entity Framework Core. That is why we explore SQL before heading to the main guest: Entity Framework Core. This book is for those who want to learn how to use Entity Framework from zero or those who want to learn a little bit extra about this subject. Don't expect 100% coverage on the whole Entity Framework Core subject, because that's impossible. I will give you enough information to work with in a way you can implement Entity Framework in your own application(s). To help you with the practical side, I have included examples and a project which you can download from my GitHub. With this project, you can type along as we are building more aspects of Entity Framework Core in a console application and API. In the end, a developer's time is 75% searching on the internet. Do know that you need to know the basics of C#! Know what variables are, how to create classes and methods, how dependency injection works, how to make decisions, how unit testing works, etc.