NEW AND IMPROVED: Princeton Public Library unveils its redesigned second floor Saturday at a special day of activities. This sleek seating area is part of the vision of Andrew Berman, architect. (Photo by Cie Stroud Courtesy of Princeton Public Library)

Friday, March 24 

11 a.m.: Free, Tiger Tales for children ages 3-5 at Cotsen Children’s Library (repeats weekly).

5:15 p.m.: On Pointe Enrichment Series at American Repertory Ballet on the new ballet Pride and Prejudice. Artistic Director Douglas Martin will lead the discussion; Princeton Studio, 301 N. Harrison Street.

7 to 9 p.m.: The Plainsboro Writers Group presents “Selected Short Stories and Poems” at Princeton Public Library. Admission is free.

8 p.m.: Westminster Schola Cantorum Homecoming Concert at Bristol Chapel on the campus of Wesminster Choir College.

8 p.m.: New Jersey Symphony Orchestra (NJSO) performs Beethoven’s Seventh at Richardson Auditorium. Xian Zhang conducts.

Saturday, March 25

8 a.m. to 2 p.m.: 31st Annual Hamilton Square Rummage Sale at First Presbyterian Church of Hamilton Square, located at 3550 Nottingham Way in Hamilton Square.

9 a.m. to 1 p.m.: Princeton Fitness and Wellness at Plainsboro hosts a free Community Health Fair including wellness screenings, classes, demonstrations, kids activities, and food. The Plainsboro facility is located at 7 Plainsboro Road in Plainsboro on the hospital’s campus.

10 a.m. to 4 p.m.: March Muster at Princeton Battlefield State Park. Continental musket drills, living history cooking and encampment demonstrations, and more.

10:30 a.m.: Ribbon-cutting and grand opening celebration of the new second floor at Princeton Public Library.

10:30 a.m.: Screening of Kung Fu Panda (2008) at Princeton Garden Theatre.

1 to 3 p.m.: Watershed Nature Camp Open House at Stony Brook-Millstone Watershed Association in Pennington. Open to families with children ages 5-16. Learn more at www.thewatershed.org.

7 to 9 p.m.: Café Improv at the Arts Council of Princeton. For a list of performers and to register to play, visit cafeimprov.com.

7:30 p.m.: Composer Portrait: Juliana Hall featuring Night Dances, selections from The Poet’s Calendar and the world premiere of The Bells (Edgar Allen Poe) at All Saints’ Episcopal Church, 16 All Saints’ Road in Princeton.

8 p.m.: Join the Eastern Wind Symphony at Richardson Auditorium for American Visions: The Music of Aaron Copland.

Sunday, March 26

Noon to 3 p.m.: The Hopewell-Keroka Alliance’s 8th Annual Indoor Flea Market at Hopewell Valley Central High School in Pennington. HKA New Jersey selects and manages its projects in collaboration with HKA Keroka, a sister non-profit organization comprised of community leaders and volunteers on the ground in Keroka, Kenya.

Noon to 3 p.m.: Princeton Pong Open House. Learn about summer camp, memberships, and tournaments. Learn more at www.princetonpong.com.

1 to 4 p.m.: Join Terhune Orchards every Sunday throughout March for their Spring Music Series. Also, be sure to sample their award-winning wines.

3 p.m.: The Dryden Ensemble celebrates Bach’s 332nd birthday with a concert of chamber music by the composer at Miller Chapel on the campus of Princeton Theological Seminary.

3 p.m.: Patrick K. Spero, Librarian of the American Philosophical Society presents “Creating Pennsylvania: The Wars, Rebellion, and Revolution that Made the Keystone State” at The David Library of the American Revolution, located at 1201 River Road in Washington Crossing, Pa. Admission is free.

3 p.m.: Westminster Community Orchestra concert at Hillman Performance Hall on the campus of Westminster Choir College. Ruth Ochs conducts.

3 p.m.: Family Barn Dance presented by the Princeton Country Dancers at the Suzanne Patterson Center, 1 Monument Drive, Princeton.

4 to 6 p.m.: Live concert with David Broza and Ali Paris entitled “Bridging the Divide” to commemorate the 30th anniversary of the Amy Adina Schulman Memorial Fund at Richardson Auditorium. The event is co-sponsored by Princeton University’s Center for Jewish Life. Free, but tickets are required. To reserve tickets, visit https://tickets.princeton.edu.