This tutorial, by Michael Crump, demonstrates how to build a web application using ASP.NET Core that simulates an end-user finding a house they're interested in and submitting a form to receive an SMS from a real estate agent. The application uses the Vonage API to send SMS messages. The development follows the Model-View-Controller (MVC) pattern, with separate classes for models, views, and controllers. The application is built using C# and Razor Markup engine, and it includes features such as form validation and submission, as well as integration with the Vonage API to send SMS messages.