A postdoc asks-
I’ve read that a resume always has to be exactly one page. But it is really hard to capture everything I’ve done. How important is the one-page resume rule? 

The one-page guideline isn’t super important; it would be unusual for a hiring manager to hold having a longer resume against you (unless it is so long that it makes you seem very out of touch, like a 4+ page resume for an entry-level position). However, many reviewers won’t read beyond the first page, so you should make sure everything the readers absolutely need to know finds its way onto page one. Consider which of your experiences are most relevant for this position, and only list things that add to your candidacy. Try not to include anything redundant or irrelevant to the specific job you are applying for. For example, if your older research experiences don’t showcase additional skills or expertise, they don’t need to be included. 

-David Blancha, Assistant Director, Career Development Team for Researchers