The Book Cellar, books for sale, basement, Warren Public Library, 11 a.m.-2 p.m.
Wilder Museum, Irvine, open, 1-5 p.m.
Chess club, Youngsville Library, 10 a.m.
Warren General Hospital Auxiliary accepting $5 donations to add an angel to the Angel Giving Trees set up at the WGH Cancer Care Center & WGH Outpatient Lobby.
LAST DAY, "Through Irish Eyes" memorial exhibition of paintings by the late Shirley "Irish" Smith AND "Mixed Phases," paintings and "Flat Folk" by Youngsville artist Suzanne Bollinger Haupin, 11-5 p.m., Crary Art Gallery, 511 Market St., Warren www.crarygallery.org
Warren High School Class of 1957, lunch, Warren Holiday Inn, 12:30 p.m.
"Active Parenting of Teens," Forest-Warren Human Services, Hospital Dr., North Warren, 9 a.m.-2 p.m.
Gospel and Christmas sing with local singers and the Captain and His Friends, The Crossing, Hickory St. at Pennsylvania Ave. W., Warren, 7 p.m.
"Follow the Star" Advent/Christmas concert, St. Joseph Church, 7:30 p.m. Featuring Tennessee Back Porch, a very talented professional musical group from Erie. Concert benefits Saint Joseph School and Parish. Refreshments will be served at the intermission, and the parish children's choir will perform.
Santa visits downtown neighbors with Warren Firefighters Union, 1-3 p.m.
Drumcliffe luminary lighting, 6-8 p.m.