2.16 The Preamble

The preamble is the part of the source code that comes after the \documentclass command and before \begin{document} (the start of the document environment ). Only a few special commands may be placed in the preamble (such as \title), and there are a few special commands that may only go in the preamble (such as \usepackage). Nothing that generates text (for example, \maketitle) may go in the preamble.

\documentclass{...}

                    ⬅ This bit here is the preamble

\begin{document}

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