Speaking of minimal, if all you care to do is shoot me an email, pick your favorite:
rogers.george@gmail.com
curmudgeon@writing-rag.com
From Henry, Merle, and Dan. When I read Merle's letter, I told her I didn't know I was so good. She replied that she forgot to add "humble." Dan forwarded me a questionnaire he received from a prospective employer who picked somebody else. You can also find several recommendations on LinkedIn.
Most of my work during the past decades is under confidentiality agreements, so I can't use them as samples. Look on it as proof that I won't betray a confidentiality agreement. Most of it was rather boring, anyway.
Here are a few pages from the computer courseware I developed.
This much longer sample is about fixing a laboratory instrument. I have permission to use this, but don't go dragging it around to the competition, okay?
Two samples from my last place of employment that doesn't have a confidentiality agreement: A mission statement prepared for the Chamber of Commerce, and a small safety poster.