The Prison Book Program is a nonprofit organization with the mission of mailing books to individuals in prison to support their educational, vocational, and personal development, ultimately helping them avoid returning to prison after their release. With an operating budget of $410,000 and total revenue of $661,700 for the 2025 filing year, the organization is primarily funded through multiple sources, none of which contribute 50% or more of its revenue. More information can be found on their website at www.prisonbookprogram.org.