Beamer is a LaTeX document class for creating presentation slides, with a wide range of templates and a set of features for making slideshow effects.

The Beamer class is not the first LaTeX class for creating presentations, and like many of its predecessors (such as slides, seminar, prosper, powerdot),[2] it has special syntax for defining "slides" (known in Beamer as "frames").

Slides can be built up on-screen in stages as if by revealing text that was previously hidden or covered.

The most important features, according to the user guide[1] are: Source code for Beamer presentations, like any other LaTeX file, can be created using any text editor, but there is specific support for Beamer syntax in AUCTeX and LyX.

An "article" version is also available, rendered on standard sized paper (like A4 or letter), with frame titles used as paragraph titles, no special slide layout/colors, keeping the sectioning.