Hardback books are hard to recycle because of their binding the glue and hard covering. Most material recovery facilities (MRFs) are only set up to handle two-dimensional paper products like a sheet of newspaper or office paper. The size, shape, and awkward nature of a book makes recycling difficult. Recommendations include:
Check with your local library. Many times libraries will sell used or old books as a fundraiser.
Check with your trash / recycling hauler to see if and how they will accept books to be recycled curbside.
Gold Medal Environmental/Paper Retriever local drop box locations. Books and magazines will be recycled as paper at the locations listed. No hard covered or thick books will be accepted unless the pages are removed from the cover and binding. Hard covers and binding are trash.