I have a conundrum

[Gene C]

I hope my wife doesn't read your post, and more importantly, doesn't read the responses.

You may regret this, but since you asked.

If you have more than one copy of a specific book, keep only your favorite or best copy. Let the other one go.

If it's a poor book that you really don't care for, you are not likely to ever read it again, but it has some good passages in it, let it go if the Internet Archives has a copy of it.

If you could only keep 1600 of your books, which ones would your dog want you to keep.