In my apartment building, people who don't want stuff anymore bring the stuff to the laundry room in case someone else wants it. There's always all kinds of junk, maybe a couple of good things (I grabbed some cars for the boys one day). But we live in a building mostly populated by elderly people, so there are a lot of old books dropped off. I can just imagine the thought process: "you never know who might need a step-by-step guide to how to operate a Commodore 64!"
Here's a book I found there one day:
"Dvorak's Guide to PC Telecommunications"
Published in 1990.
The next picture is too blurry to actually read, but important to the story:
The dedication says "For all mankind".
Wow, if we'd only known years ago that this guy had given us such a gift. Imagine what a different world we might live in today.