One-pagers are all the rage these days. When students process their learning in this fun visual style, the results are powerful.
In screenwriting (writing for movies and TV), the logline is key to brainstorming story ideas and also selling them or "pitching" them to buyers. Crafting loglines can help the writer to flesh out new plot ideas before writing the entire script. It's much easier to revise the logline rather than an entire hundred page script!