Prosper is a LaTeX class for writing transparencies. It is written on top of the seminar class by Timothy Van Zandt. It aims to offer an environment for easily creating slides for both presentations with an overhead projector and a video projector. Slides prepared for a presentation with a computer and a video projector may integrate animation effects, incremental display, and so on. Various visual styles are supported (including some that mimic PowerPoint) and others are being contributed. The author is Frederic Goualard. See also ifmslide.