The purpose of this picture is to illustrate the impact of leading lines on our mind and their importance in photography.  This is not a good picture.  There is more interesting subjects than a street sided by trees and a brick wall.

Leading lines have such an impact on our mind!  This picture third dimension is screaming at us.

About using Leading Lines in composition.

While this example is extreme, look for leading line in your projected picture and try to use them to lead the viewer to your subject.  Alternatively, they can lead the viewer from one part of the picture to another.

Leading lines are also giving a sense of depth.  When these lines support perspective, this is also a powerful communication tool.  They give a great sense of depth.

When a good subject is in sight, take the time to study it and the surrounding.  By taking this more time and looking at the subject from different angles you will find other compositions supported by these surrounding elements.

Leading lines is a concept to help support your creative vision in photography.  Leading lines are not a necessary part of a good picture.   However, if there is leading lines in your picture, you have to take these into account.  Should these lines leads your viewer outside your picture, the interest in your picture will be greatly reduced.

Look for existence of leading lines in the frame and ask yourself, does the leading lines support or reduced the interest in your picture.  Before pressing the shutter, you can move up, down, left and right.  You can also walk around the subject in search of a better viewpoint.

About yourself, are you looking at potential leading line in the picture you are about to take?