HenryBemis parent
In those good old days my Uni was giving away those bulky Unix "manuals" (after every major upgrade they were refreshing the documentation/dossiers) and they would leave on a table a few dozens of the 'outdated' ones. Everyone would grab one and it was a first-come-first-served, and you could end up in a 'useless' dossier, but still they were amazing reads.
I miss the days of useful manuals. They were hard and expensive to write, but they had a wealth of technical information that is often impossible to find today.