# Dividing preamble into smaller files

Preamble of my tex file is going to be so long, Can I divide it to some smaller and reusable files? I used \include but it seems that it did not include any thing.

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Either use \usepackage (for .sty files) or \input (for other files, like .tex). –  Werner May 17 '12 at 1:22
\include does not work in the preamble, because it is indented for chapters etc. See When should I use \input vs. \include? for an explanation. –  Martin Scharrer May 18 '12 at 8:28

I would separate them into different .sty files, and include them via \usepackage.

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