You know how sometimes you KNOW something and then someone comes along and says it out loud in such a simple way that there is complete and beautiful clarity.
If you have EVER wondered about ghosts (those ads the industry makes to get awards) and how the real world feels about them, have a look at this and this. It doesn't get simpler than that: a definition of what true advertising does, solve problems that clients place before you, and what ghosts are (great depiction of the evil, fake-ad-building rabbit :-)
communication is essential to business making and it involves more than the ability to name your product, write a tag line or a press release. It's an intricate, rational and scalable effort and, let's face it, not anyone can do it.