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My library had some donations they were getting rid of. See any standouts?
I don't know most of these, but didn't Gordon R Dickson write the Dorsai books? That said, there's a lot of reading for you there...
Some of them look terrible!
At least you have the guarantee that one editor thought each book was good enough to publish.
What's really interesting an not obvious in the picture is that a number of these titles are double features. Look at the bottom left-hand book to see what they look like. One cover is one book, then you flip it over and the other side is a different title.
Yes, I see a lot of those in the local used book stores. Must have been quite a thing in the day.