Mark your calendar for the 4th Friday of each month, for the Library PALS monthly book sale, at the Rock Island Public Library Downtown location, 401 19th Street. Fill a bag for a donation, to benefit special library projects funded by the Rock Island Public Library Foundation. Sales are coordinated by PALS volunteers, which stands for People Advocating for Library Services. For membership information, see the Volunteer page at the Library website. New volunteers welcomed!