Learning by doing is fine. If you sit down at an edit controller and hit the buttons until they do what you want, you will probably learn how to edit. Do it long enough and you might even get good at it. But once you understand the basics of the craft, you may want to try to attain a higher level of sophistication. To do that, you should study the masters.
Whether you’re recording audio for a commercial, a wedding or your next feature film, you need the best microphone possible.