Over at Envato Tuts Alireza Rahmani Khalili wrote a good article on Laravel Facades.

Sweet syntax, which Laravel uses, makes writing code cleaner and easier to understand. Laravel facades are actually the syntactic sugar for service location. Let’s take a look at Laravel Facade and the way it functions.

http://code.tutsplus.com/tutorials/what-are-laravel-50-facades--cms-25347