A hiring manager’s first impression of you is based off of your resume. This is why it is important that your resume is well-formatted and easy to read. It is also why your resume needs to be as brief and focused as possible. A one page resume helps you present your skills and work history concisely so the hiring manager can see at a glance how well suited you are to the position. Also, if the hiring manager uses software to manage incoming resumes, you are more likely to be selected if you have a focused one page resume rather than a long-winded resume that several pages.