I feel your pain, Roger. I hate to toss any books, no matter what the subject. If I don't intend to read them, I don't buy them in the first place.
On the other hand, if I leave a stack of books lying around and tell my wife I don't have any need for them, they will magically disappear in short order. I suspect what she does with them, but for me it's painless and I can rationalize that it wasn't my fault.
CQ de W5ALT
Walt Fair, Jr., P. E. Comport Computing Specializing in Technical Engineering Software