This is a general syntax of a LaTeX file:
\documentclass[options]{class}
% Further global commands and specifications goes here
\begin{document}
% Text mixed with additional commands of local effect goes here
\end{document}
class:
book, report, article, letter, slides
options:
10pt/11pt/12pt, letterpaper/a4paper, twocolumn, twoside, landscape, draft
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