One of the keys to mastering photography is to know how perspective affects the image. Perspective is the best procedure for creating a three-dimensional sensation in a photograph. It refers to the dimension of objects and the spatial relationship between them with respect to a point of view.
When we see a photo we are seeing a two-dimensional representation of a three-dimensional scene. The best compositions can be created by applying the concepts of perspective when converting a three-dimensional scene into one of two.