I'm thinking of selling off parts of my library.  For example, I have the entire Glass Audio series.  AA and AxP going back over a decade.  The full Audio Anthology set of books, etc.  It all takes up too much shelf space and is heavy.  Plus, I never go back and read them anymore, although I did when I first started into tube electronics.
What would be the best place to auction or sell these items off?
jh