This document discusses the elements that make up an effective photo essay. It explains that a photo essay tells a story through a sequence of photographs rather than words alone. It can have either a narrative or thematic structure. Key elements include a range of high-quality photographs that show both information and emotion, effective ordering, and descriptive captions. The types of photos discussed are lead photos, scenes, portraits, details, and clincher photos. Together, these elements and photo types allow a photo essay to convey its message powerfully through images.