Once accepted, a large number of new submissions are required each year. Photographers frequently have their photos placed on CD's for this purpose. Commercial, editorial, and industrial photographers take pictures of such subjects as manufactured articles, buildings, livestock, and groups of people. Their work is used in reports, advertisements, and catalogs. Industrial photographers take photographs or videotapes for use in analyzing engineering projects, for publicity, or as records of equipment and processes.
Automobile manufacturers hire photographers every year to show off their new models.
Companies use photographs in publications to report to stockholders or to advertise company products or services. This work frequently is done on-site. Scientific photographers provide illustrations and documentation for scientific publications, research reports, and textbooks. They usually specialize in fields such as engineering, medicine, biology, or chemistry. Some use photographic or video equipment for use as a research tool.