Just give the book to some needy soul who would appreciate it.
You never know, sometime in the future, they might just do the same for you.
It happens to me all the time, that is why on a new project, most times I don’t need to buy raw materials, I already have it in stock, or something close to it, kindly donated by a grateful friend.
Giving, with no strings attached, is always better than selling.
With selling, you have a few bucks for a day or so, giving gives goodwill for life.
Bogs