A photographic essay tells a story or evokes emotions through a series of photographs. It can convey more than a single image. Photographic essays can be purely photographic or can include captions or text. They can have a narrative structure and tell a story chronologically, or they can have a thematic structure and address a particular topic or issue. Effective photographic essays consider themes, subjects, structures, and techniques to craft a coherent narrative and evoke specific emotions in the viewer.