Very often botched or overlooked, yet the composition has a fundamental role in the final result of your photograph: a well-composed photograph allows it to be "readable" and understandable, that a subject takes all its importance, to give meaning to a movement t
o beautify a landscape avoiding signage panel, etc..
Although no absolute rule makes faith in photography (and fortunately), there are a few simple tips that will help you make sure you fit! Your topics will be highlighted and attract the eye ...
The rule of thirds (or golden rule), the lines of force

The rule of thirds, also called golden rule is the rule of rules in picture ... Everyone knows it, few people respect. The principle is very simple: to fit well, always trying to put the subject of your photo (what you want the viewer to look first) on a strong point of the image.
The crossing points of the red lines are the highlights
s of the image. In most cases, place the main subject of the photo on one of these points is a good thing.

Important Note - The rule of thirds applies to heaven in your compositions! Except in cases of very pretty and loaded with beautiful clouds, there is no need to present a huge surface of heaven a little bit of land, especially if your subject is down! This is a "mistake" very classic ...