You may think that a recruiter or hiring manager will read your resume from top to bottom as soon as they receive it. They won’t.
You may also think that every, single, thing you’ve done over the last 20 years is important. It’s not.
Most readers will quickly scan your resume looking for information relevant to the job they are trying to fill. A first read generally lasts only a few minutes. If your resume is 3-5 pages, they may not review the entire document.
In most cases, only if a recruiter or hiring manager likes what they’ve found on the initial scan will they read the entire resume.
While there are mixed opinions on how long a resume should be – no one’s resume needs to be seven or eight pages. Yes, when I was working as a recruiter I saw them. I still see them today.