A used book sale will be from 9 a.m. to 3 p.m. Friday and Saturday in the basement of the Butler Public Library.

Also, the library welcomes more donations of used paperback books. They can be delivered to the circulation desk at the library.

Dinner benefits Dunbar Center

Having a night out on Monday will benefit the Dunbar Community Center, 501 Fairground Hill Road.

“Dining for Dunbar” will be from 5 to 7 p.m. at the Chop Shop, 108 N. Main St. A portion of every ticket will be donated to the Dunbar After School Program.

The center offers programs for children, teens and adults.

For more information, call 724-287-5649.

SLIPPERY ROCK — March 28 is the deadline to register for Project Budburst. The event is from 8 a.m. to noon April 3 at the Jennings Environmental Education Center, 2951 Prospect Road.Families will learn about changing climates by observing and reporting seasonal changes in local plants. They will discover how and why scientists study “phenology” and the stories plants can tell.The program is for students age 5 or older. Younger and older students work separately on some activities.To register and prepay, call 724-794-6011 or visit www.dcnr.state.pa.us/calendar and select “Jennings Environmental Education Center.”

Seniors for Safe Driving will host the following classes for those age 55 and older:9 a.m. to 1 p.m. April 3, Cranberry Senior Centernoon to 3:30 p.m. April 8 and 9, Butler Senior Center at Tanglewood, Lyndora9 to 1 p.m. April 9, Concordia Haven II, Cabot5:30 to 9:30 p.m. April 22, Kelly Chevrolet8:30 a.m. to 12:30 p.m. April 25, Butler Memorial HospitalSeniors completing the course will receive a 5 percent reduction in their automobile insurance premiums for three years.To register, call 724-283-0245 or 800-559-4880 or visit www.seniorsforsafedriving.com.

HARRISVILLE — The Harrisville Volunteer Fire Department will sponsor a spring bazaar from 9 a.m. to 2 p.m. April 5 at the Harrisville Fire Hall, 313 E. Mercer St.The event includes a Chinese auction and refreshments.

FREEPORT — The Freeport College Club’s annual Spring Brunch and Fashion Show will be from 11 a.m. to 2 p.m. April 6 at the Brackenridge Golf Course, 1299 Lane Ave., Natrona Heights.Proceeds will benefit the Freeport School District Scholarship Fund and the Freeport Area Library.For a discount, register by April 5. For more information, call Janis at 724-295-4056.