Before You Press the Shutter: 3 Beginner Photography Basics That Matter Most

And that is also why I think these three things matter most at the moment you shoot: format gives you editing room, exposure protects your details, and composition gives the image its structure. If the base file is already solid, post-processing becomes much easier. For the editing side of that workflow, you can continue with my post How to Edit Photos in Lightroom for Beginners: 3 Essential Steps That Make the Biggest Difference.