Hello! Interested in photography? The first thing you should know is that this guide isn't finished yet. Not even close.
But you want to learn more! I can tell, because you kept reading! Woohoo! Whether you're already familiar with much of digital photography or a total novice, this guide has something to offer you. It's structured in a way that should allow more advanced photographers to quickly move ahead into topics they are unfamiliar with.
So find a camera - any camera, even your cameraphone or your uncles dusty old DSLR.