This document provides a guide to Beamer v3.0, covering its structure, themes, options, fonts, colors, figures, and verbatim environments. Beamer v3.0 introduced five theme categories - presentation, color, font, inner, and outer themes. It supports a variety of layout and output options. Figures, verbatim text, and drawings can be included and manipulated with overlays. PGF and PSTricks can be used to precisely position elements.