One question I always have regarding the 2 page suggested limit -- should I just drop old positions? At some point in a long enough career, just listing company, position, and dates will push it out past 2 pages.
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.
I've also gotten conflicting opinions on leaving off my graduation date so I end up alternating back and forth on that.
Yes. If there is work that you would like to specifically highlight, group your achievement(s) into your summary. If someone says not put a summary in your resume (beginning or end) you are making a mistake. Having an (albeit brief) identity helps you remain memorable in a sea of similarity. No need to list jobs 10 years ago, but saying you have written forum software or worked on a banking app is relevant to your career.