The Vinland Fair runs through Saturday at 1736 North 700 Road near Baldwin City with homemade food, competitions, exhibits and live music. See vinlandfair.com for more details. Other events coming up include vocal music, new art, theater auditions, skateboarding, a book signing and an opportunity to work on a state park trail.

Friday

• The Lawrence Opera Theatre presents “American Trend Setters in Vocal Music” from 4 to 5 p.m. at the Lawrence Public Library, 707 Vermont St. Come learn about the many composers who have enriched American classical and theater music. See lawrence.bibliocommons.com for more details and a program.

• Two new exhibits open this weekend at the Lawrence Arts Center, 940 New Hampshire St. “Elena Masrour: We’re Not in Tehran Anymore” opens at 5 p.m. today and runs through Sept. 10, with a Final Friday reception at the end of this month. Masrour’s paintings are inspired by the post-revolution challenges in Iran and the weaponization of religion. This is her first showing in Lawrence. Also opening tonight is Nick Gadbois’ “The Way West,” which explores the landscape of the U.S. prairies and the stopping points on old Route 66. The exhibit will include an art talk and a reception, both scheduled for later this month. More information is available at lawrenceartscenter.org.

Saturday

• Lawrence Parks and Recreation and River Rat Print and Skate are hosting an open house about upcoming skateboarding lessons from 9 to 11 a.m. at Centennial Park, 600 Rockledge Road. People of all ages and all skill levels are invited; bring your own skateboard and gear.

• Auditions for “Fancy Nancy: The Musical” will be held from 10 a.m. to 12:30 p.m. at the Lawrence Arts Center, 940 New Hampshire St. All ages are welcome. See lawrenceartscenter.org for more information.

• St. John the Evangelist Catholic Church at 1234 Kentucky St. will be holding a bierock sale this weekend. The sale starts at 1 p.m. Saturday and continues through Sunday; the rolls will be sold for $6 each.

• The Kansas Summer Nationals truck and tractor pull is at 7 p.m. at the McLouth Threshing Bee grounds, three blocks south of the intersection of K-16 and K-92. See mclouththreshingbee.com for more information.

Sunday

• Volunteers can help reroute a trail Sunday morning at Clinton Lake. The state park is changing the route of its Red Trail due to unsafe conditions that are expected to worsen, and help is needed to create a brush-and-timber barricade to bar access to the damaged section. Volunteers can meet at 9 a.m. at the Army Corps of Engineers Visitors Center, 872 North 1402 Road.

Monday

• Chelsea T. Hicks, author of “A Calm and Normal Heart,” will hold a reading and book signing Monday evening at the Raven Book Store, 809 Massachusetts St. The reading begins at 7 p.m.

Tuesday

• The public is invited to learn about beneficial services at the Community Resource Clinic from 3 to 5 p.m. at the Lawrence Public Library, 707 Vermont St. See lawrence.bibliocommons.com for more details.

• The Kaw Valley Fiber Guild meets at 7 p.m. on the second Tuesday of each month at First Presbyterian Church, 2415 Clinton Parkway. The evening will begin with a short business meeting followed by sharing of projects and a fiber-related demonstration. See kawvalleyfiberguild.org for more information.