Our world is a 3-dimensional space, yet every photograph we take is a 2-dimensional representation of it. Therefore, it makes sense that lines play such an important role in composition. In composition, lines play various roles, from giving the image a structure to even guiding the viewer in and out the image's own space. Lines are the most basic element of visual composition, and yet, they can be challenging to many photographers no matter their level of expertise. The great thing about lines is that you can start looking for them pretty much right now, and you'll start to grow as a photographer in no time. There are 5 types of lines that you can find around you and I'm going to group them into 3 categories – easy to find, hard to capture and extremely difficult to master.