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If your paper is in LaTeX, your talk probably should be too. Beamer — the standard LaTeX presentation class — gives you the same equations, citations, and notation as your manuscript, with none of the copy-paste-into-PowerPoint degradation. Conference deadlines being what they are, the ability to reuse your paper’s math verbatim is not a small thing. This tutorial builds a working presentation from zero: frames, a theme, two-column layouts, highlight blocks, and step-by-step reveals. Every example compiles as shown.

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A Minimal Presentation

A Beamer document is a sequence of frame environments — one frame, one slide. With a theme and title metadata, this is a complete two-slide presentation: Three things to note:
  • \usetheme{Madrid} picks one of Beamer’s built-in themes. Others worth trying: Berlin, Frankfurt, metropolis (a modern favorite, available as the metropolis package), and the deliberately plain default.
  • \frame{\titlepage} generates the title slide from the metadata in the preamble — nothing to lay out by hand.
  • The frame title goes in braces after \begin{frame} — no manual heading formatting.

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Columns and Blocks

Slides are landscape; long lines of text waste the format. The columns environment splits a frame, and block/alertblock/exampleblock give you themed callout boxes: Blocks inherit the theme’s colors automatically — alertblock renders in the theme’s warning color, which is how you make the one thing you want remembered visually distinct without hand-picking colors.

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Revealing Content Step by Step

Overlays are Beamer’s answer to “appear on click”. The <1-> syntax after an \item means “visible from step 1 onward” — Beamer compiles one PDF page per step, and every PDF viewer’s next-page key becomes your clicker: Notice the output has three pages for one frame — that’s the overlay doing its work. The shortcut \pause does the same thing when you just want everything after it to appear on the next step. A restraint tip: overlays are the Beamer feature most likely to be overused. Reveal-per-bullet on every slide makes talks feel slower, not clearer. Use them where the order of appearance carries meaning — building up a derivation, contrasting before/after — and show everything at once otherwise.

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Practical Advice for Real Talks

Aspect ratio. Modern projectors are 16:9. Use \documentclass[aspectratio=169]{beamer} — the default is still 4:3 for historical reasons. Less per slide than you think. Beamer makes it easy to paste a paragraph from your paper. Resist. A frame holds one idea; your paper holds the details. Math scales for free. Equations render identically to your manuscript — same macros, same numbering if you want it. This is the single biggest reason to present from Beamer instead of exporting figures into other tools. Handouts. \documentclass[handout]{beamer} collapses all overlays into single slides — one command for the printable version, no second file to maintain. Navigation clutter. Most themes show navigation symbols nobody uses. \setbeamertemplate{navigation symbols}{} in the preamble removes them.

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Compile It Without a Local Setup

Beamer and all its themes ship with TeX Live, so every example here compiles in LaTeX Cloud Studio as-is — with the PDF preview beside your source, which suits slide iteration well. Start a presentation in the editor →