"If there's a book you really want to read but it hasn't been written yet, then you must write it."
~Toni Morrison
The history of libraries is pretty fascinating, dating back centuries to the first one, probably in China, which was private. Public-funded lending libraries in the United States took a long time to get organized. To find out more about libraries, check this site: The Straight Dope.
Volunteers in my branch library help the regular staff by reading to kids, placing books on shelves, assisting at special functions, and gardening the library grounds. I've spent many happy hours there.