Discuss the use of photographs as a visual or data display; explain their advantages and rules for use.

Photographs convey a sense of authenticity. The photo of a devastated area can suggest the need for government grants or private donations. The photo of a prototype helps convince investors that a product can be manufactured. If the item is especially big or small, include something in the photograph that can serve as a reference point: a dime, a person. Make sure to use high-quality professional photos, especially on websites where audiences may have the ability to zoom if they're viewing on smartphones. Be sure to also keep the photographs on a website consistent, whether it is the background, colors, or overall tone. You may need to crop, or trim, a photo for best results. However, make sure to be ethical with any cropping you do. A growing problem with photos is that they may be edited or staged, purporting to show something as reality even though it never occurred.