Photography professionals, also called photographers, capture moments using cameras and other equipment. They most often take pictures of people, but they also photograph places, artwork, animals, and a wide range of other subjects. Photographers may take pictures for their own use, or they may be hired by individuals, groups, or companies. Before the photo shoot, photographers offer advice about locations, settings, and poses based on their expertise. Standard tools used by a photographer include a camera, tripod, different types of camera lenses, photo editing software, and backdrops. Photographers may work independently on a contract basis, or they may work for a company or agency as a staff photographer.