In this lesson, you learned about static fields and then static properties that could be used to access those fields. You also learned about what happens when you shut down IIS Express. You created a public Truck class, used it to count trucks by make, and finished by going back and documenting your program.
In the next lesson, you're going to learn about the basics of inheritance. You will be focusing solely on the concept of a relationship between a parent class and a child class. You will also focus on the concept of centralizing code so that it doesn't have to be written multiple times.