A primer on audio issues with tips on preferably preventing them or trying to fix them after. This is fantastic if you use a microphone to record anything, for audio, video, music, podcasts, whatever. It will make you think first and have (less) problems later.
At the very least, you’ll learn the vocabulary so you can act all knowledgeable about things you are still learning. At the most, you’ll get better at what you do when creating cool things and improve your process.
And it has example audio clips for everything being discussed.
P.S. You’re still learning aren’t you? If you are still alive, it’s really the only way to go. And a bit of knowledge knocks the crap out of that self-doubt that keeps you in your shell.
P.P.S. Free. Go!