- Issac Asimov's histories. They were library use only and have been long discarded before the electronic age.
- No Rusty Swords, Letters from Prison by Dietrich Bonhoeffer. Had them at seminary and foolishly let them go.
- Norton Anthologies. College literature books in American and World. I kept the Modern Poetry one. It came in handy when I was wooing my wife way back in the day.
My eyesight has been so poor that I've stopped reading hard copy books. Kindle lets me set the size of the font and puts less strain on them. I've had one eye's cataract removed and will get the other one done in a few weeks. I can tell the difference already and may go back to reading regular books. The biggest problem is room for new books. I have a one side of my garage full of books and the books cases in my house are overflowing.