In general, most employers want a concise resume without a lot of nonessential information. They only spend seconds reviewing it, so the more compact it is the easier it will be for the hiring manager or recruiter to review. Therefore making sure your resume is focused on the job you're applying for is essential in helping you proceed to the next stage.

Doing the rounds at the moment is the CV of Yahoo CEO Marissa Mayer which, for a businesswoman with enough experience to write a novel, is a solid example of what can be achieved on just one page.

Alongside her extensive professional accomplishments, the resume includes Mayer’s most significant points of achievement. These points show times when Mayer either showed special initiative through her decisions or participated in an important project.

It just goes to show what can be achieved on just one page and also begs the question, is one page enough? 

When it's as concise and well written as Marissa's, it seems so!