As a photographer creating an image for your viewers there are many ways to present that image. Lighting and color, composition, perspective, these are all choices you have to make. One of the inescapable tools used for manipulating your scene is your camera's lens. With any lens there are considerations to keep in mind; focal length, angle of view and perspective are three that immediately come to mind and I'll cover some aspects that need to be understood in order to make an informed lens choice for a given scene. One suggested exercise is to take all your lenses, find a suitable subject and make a series of images with all the lenses in your collection. If you have a zoom lens, take several images at varying focal lengths so you have something for comparison.