/lit/ - Literature

Hello OP.
I am JUST starting to get into identifying what year a book was printed and whatnot. what edition it is etc. Not as cut and dry as I figured.

I bought some random books from some thrift stores. A simple one too, Green Eggs and Ham. so i open up to the copyright information and it says: C 1960 renewed 1988. those are the only two dates there so I figured... easy! this was a 1988 printing. It can't be. Seems absolutely brand new. I think it was printed in 2020.

Any advice on this? much appreciated.
I want to learn. I thought it was going to be simple. Can't find any information on the publisher's number line straight out the gate or anything. And some books can SAY first edition still but not be first edition? Whack.

I'm just using this book as a simple example.

and then this book goes for hundreds of dollars. I want it.