The Prison Library Project is a GREAT organization! It sends hundreds of free books to prison inmates every week. As a formerly incarcerated person myself, I know what a lifeline books can be to those in prison. Most books are donated and all mail processing, book selection, wrapping, etc., is done by volunteers. Proceeds from their used bookstore (a treasure in itself!) are used for postage, supplies, and to purchase specialty books where donations can't keep up with demand (like dictionaries).
Review from Guidestar
I love this bookstore! Always find interesting books here - of all kinds. Novels, non fiction, children's; everything. For popular titles, they usually have 2 or 3 copies, not just one, as in most used bookstores. Prices may be set, or you make a donation. Your money pays for mailing costs to send books to those in prison. Imagine being in prison and not having anything to read...and books have high mailing costs because of their weight. Many people read on devices, but those in prison don't have access to computers or devices - hard copies are their only option. They also sell at the Sunday Farmer's Market in Claremont, there you make a donation. But the store in the old Packing House has more books.