As an intro to photography, one must know the three basic requirements to take a great photo. They are Lighting, Framing and Post Production.
Understanding lighting alone makes a massive difference to your photography and can make your photos stand out from the rest.
Framing/ Composing a photo will help make you tell a story with the help of the right elements in the picture.
Post-production is a crucial part of photography. Think of it as developing a camera film, you take the negative roll, process it through different solutions in a dark room, and then you get your desired output. Digital post-production is much simpler and handier to have on the go!