It begins by introducing WebAssembly, the technology that makes Blazor possible. It then discusses the different hosting models available for Blazor applications. Next, the book covers the basics of building Blazor applications, including how to create components, handle user input, and navigate between pages. The book then delves into more advanced topics, such as uploading and downloading files, using .NET and javascript interoperability, connecting to the world with HTTP, persisting data with EF Core, and protecting your application with identity. Finally, the book shows you how to deploy your Blazor application with Docker and Kubernetes.