Take advantage of closures in C# — including anonymous methods, delegates, and lambda expressions — to make your code robust, efficient, readable, and easier to maintain.

C# also lets us create what’s called value objects, a special type of object used in domain-driven design that allows us to articulate domain concepts simply, clearly, and concisely.

Creating a new form in C# is fairly simple, ... Obviously, what we need is a variable we can access that points to the specific instance of the Form1 we want to display.