I hope it helps you - and him - to know that you are providing the books with NEW owners who will treasure them. (A number of years ago Two picked out a stuffed dog at a yard sale from an older woman who said that her granddaughter had loved to play with it when she came to visit, but that girl was now grown. She was delighted to see Two attach himself to it, and to know that as much as that stuffed dog had meant to her family, it was going to a place where it would still be treasured.)

Are the autographed books addressed to him, specifically, or just signed? I was thinking maybe you could sell some of the autographed ones on eBay.

(My husband refuses to give up books as well. He doesn't read much these days so at least he's not adding to the pile, but any book that he DID read, no matter how long ago, must stay. I only cull my own books.)