Mr. Tanenbaum seems like a nice guy. I gave away a copy of Operating Systems Design and Implementation for my osdev website a couple years ago and asked him if

Mr. Tanenbaum seems like a nice guy. I gave away a copy of Operating Systems Design and Implementation for my osdev website a couple years ago and asked him if he'd sign a copy if I sent it to him. He apologized for not having spare copies to give away and he paid to ship the book even though I told him I would.