Advice from the Unclutter blog:

Take all of your books to a book consignment shop or better yet donate them. Operation Paperback is a non-profit, grassroots program that collects used books and sends them to American troops deployed overseas. The National Book Foundation also has a list of book donation locations. Getting rid of your book clutter can also enlighten others.

My own basement is full of boxes and bookshelves of old books I’ll never read again. I just need to make time for some unclutterring.