3 LEAD THE EYE IN, NOT OUT!

A lead-in line should lead the eye in towards the part of your scene you want the viewer to pay particular attention to, such as a tree, boat, lighthouse, or whatever you determine your focal point to be. They can, however, make your image infinitely weaker when they don’t do this and instead lead the eye elsewhere, or out to the edge of the frame. This makes the viewer look away from your image and can disengage them completely, so be sure to watch where your lines are going and ensure they lead to somewhere of importance in the frame.