“There is one thing the photograph must contain, the humanity of the moment.”
— Robert Frank

Basics you need to understand

The Rule of Thirds

Leading Lines

Rule of odds

The rule of odds states that images are more visually appealing when there is an odd number of subjects. For example, if you are going to place more than one person in a photograph, don’t use two, use 3 or 5 or 7, etc.