# TexLive Presentations

**Beamer** is a document class for creating slide presentations in LaTeX. Use `\documentclass{beamer}` instead of `article`.

```latex
\documentclass{beamer}
\title{Presentation Title}
\author{Author}
\date{2026-08-19}

\begin{document}

\frame{\titlepage}

\begin{frame}
\frametitle{Slide Title}
\begin{itemize}
  \item First point
  \item Second point
\end{itemize}
\end{frame}

\begin{frame}
\frametitle{Another Slide}
Content here.
\end{frame}

\end{document}
```

Each `\begin{frame}...\end{frame}` creates one slide. `\frametitle` sets the slide title. The first frame `\frame{\titlepage}` generates a title slide from `\title`, `\author`, `\date`.

**Two-column layout:**

```latex
\begin{frame}
\frametitle{Side by Side}
\begin{columns}[T]  % T = top align
  \begin{column}{0.48\textwidth}
    Left column content.
  \end{column}
  \begin{column}{0.48\textwidth}
    Right column content.
  \end{column}
\end{columns}
\end{frame}
```

**Overlays** (progressive reveal of content) use `\pause`, `\only`, or `\visible`:

```latex
\begin{frame}
First bullet
\pause
Second bullet
\pause
Third bullet
\end{frame}
```

Each `\pause` creates a separate slide showing content up to that point. This lets you reveal points one at a time.

Alternatively, `\only<1-2>{Content}` shows content on slides 1 and 2 only. `\visible<3->{Content}` shows from slide 3 onward.

**Themes** control the visual appearance. Set in the preamble:

```latex
\usetheme{Madrid}
\usecolortheme{seahorse}
```

Popular themes: Madrid, Berlin, Copenhagen, Pittsburgh, Rochester. Color themes: default, seahorse, rose, beaver, lily.

**Navigation and notes:**

```latex
\usepackage{pgfpages}
\setbeameroption{show notes on second screen=left}
```

This displays speaker notes on a second monitor while presenting (useful with two screens).

**Custom styling:**

```latex
\setbeamercolor{structure}{fg=blue}
\setbeamerfont{frametitle}{size=\Large, series=\bfseries}
```

`\setbeamercolor` changes colors; `\setbeamerfont` changes fonts.

**Compile and present:**

```bash
pdflatex presentation.tex
```

Open the PDF in fullscreen mode for presenting (most PDF viewers have this). Or use the `.pdf` with presentation software that supports it.

Beamer is powerful for technical presentations. Start with a theme you like, write slides, and compile. The default themes are professional; no need to customize fonts unless you have specific requirements.