# Simplest way to typeset entire document in sans serif (Helvetica)

How do I typeset an entire document in Helvetica/sans serif without littering the document with font changes for every heading/paragraph, etc.? Like this but with the paragraphs all in Helvetica.

For example, I've seen documents typeset in Computer Modern and then switched to Palatino, but can I do the same with Helvetica with a few commands at the beginning?

(And please don't tell me to use a serif font for body copy / paragraphs. I know. I'm trying to use latex to typeset my resume to look like the one I've created in a word processor, which is hard to maintain but looks good. I'm hoping latex will let me do more advanced formatting/layout, separating content from form.)

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\renewcommand{\familydefault}{\sfdefault} will switch to using sans-serif for everything except mathematics. The sans-serif will be computer modern sans unless you also put \usepackage{helvet} in the preamble in order to make the default sans be Helvetica (or \usepackage{avant} for Avant-Garde, etc.
@Lev, Is there a package that does this automatically?, that is, without the ugly \renewcommand{\familydefault}{\sfdefault} code. (Nothing against it, but this is the kind of code makes me embarrassed to explain to newcomers) – alfC Mar 22 at 20:50