Especially not on cover letters or really anything that you want to be taken seriously. I have learned via Wikipedia that there is actually a movement to ban Comic Sans, and the authors of this movement argue that Comic Sans is simply not appropriate in most contexts. Here’s an excerpt from their About page:
Like the tone of a spoken voice, the characteristics of a typeface convey meaning. The design of the typeface is, in itself, its voice. Often this voice speaks louder than the text itself. Thus when designing a “Do Not Enter” sign the use of a heavy-stroked, attention-commanding font such as Impact or Arial Black is appropriate. Typesetting such a message in Comic Sans would be ludicrous. Though this is sort of misuse is frequent, it is unjustified. Clearly, Comic Sans as a voice conveys silliness, childish naivete, irreverence, and is far too casual for such a purpose. It is analogous to showing up for a black tie event in a clown costume.
When you’re applying for a position, creating an official document, even handouts – is that the impression you want to convey? Silliness? Childishness? I don’t think so. So please JUST DON’T USE THE FONT. Even the guy who inspired the font (Dave Gibbons) thinks it’s ugly!
This Public Service Announcement has been brought to you by the Library Society of the World.
Oh, man. I love Comic Sans. I know people think it looks
“kiddish”, but I love it’s casual, approachable, neat appearance, especially in contrast to TIMES NEW ROMAN. But okay, if the grownups say I have to give it up to be one of them, I’ll save it for my kids’ birthday party invitations. Sigh.
So what you’re saying is the reason I’m not getting interviews for librarian positions is because my web resume uses alternating hot pink and lime green 36 pt. Comic Sans for all the text AND takes advantage of the best HTML tag ever, BLINK!? Who knew people could be so picky. ;p