The article explains (on a high level) what lambda expressions are and how the compiler handles this language feature. The article goes also into details on performance and popular patterns from the JavaScript world, where anonymous functions are quite common. I also tried to bring up scenarios were lambda expressions have been proven to be useful.
I will update the article in the next couple of days / weeks with some design patterns that I've come up with. Those patterns make heavy usage of lambda expressions. Some of those patterns are useful in my opinion, some of them just show you something that was thought of being impossible (like how to override a static method).
So far: Happy coding!