You should think of your resume as a sales pitch. The only goal of it is to get a callback from a recruiter.

In Europe, I've had a hiring manager tell me he actually reads longer resumes. Another recruiter in the UK told me for exec profiles he's seen 3-4 pages long ones that were not great, but passable. The other 23 recruiters and hiring managers all suggested to fit it into 2 pages.

I would say, make sure everything important is on the first 2 pages. The book has an example of a person with 20+ years' experience refactoring their resume to a 2-page one, cutting off 10 years of less relevant experience, and getting a lot more callbacks.