“From Self-Care to We-Care” book signing: 6:30 p.m., Boulder Bookstore, 1107 Pearl St., Boulder. Jordan Quaglia will speak about and sign his new book “From Self-Care to We-Care: The New Science of Mindful Boundaries and Caring from an Undivided Heart.” He will be in conversation with Clarissa Cigrand for this special event. $5, boulderbookstore.net.

Wobblers & Walkers: 11:15 a.m., Boulder Public Library, 1001 Arapahoe Ave., Boulder. Beginning toddlers explore language and books with their caregivers in a fun and intimate setting. Programs include rhymes, songs and books as well as time for free play and informal discussion of early childhood development. Space is limited. calendar.boulderlibrary.org.

“Echoes of Korea” opening reception: 5 p.m., Boulder Public Library, 1001 Arapahoe Ave., Boulder. Meet the artists Eunjoo Kang, Hana Kim and Michael Le Desma as they share their creative journey, and attend the opening reception of “Echoes of Korea.” calendar.boulderlibrary.org.

“Days of Heaven” film screening: 7 p.m., Boulder Public Library Main Library, Canyon Theater, 1000 Canyon Blvd., Boulder. A hot-tempered farm laborer convinces the woman he loves to marry their rich but dying boss so that they can have a claim to his fortune. The movie will be discussed before it starts, after it ends and once or twice during the movie. Snacks are provided. Free, facebook.com.

Enchanted Mesa group hike: 8 a.m. Friday, Academic Hall, 298 Morning Glory Drive, Boulder. Group hikes take place every Friday through October. This tranquil, beginner-friendly two-mile trail features a gentle 500-foot elevation gain — perfect for soaking in nature’s beauty at a relaxed pace. Bring a hat, water bottle and wear comfortable, sturdy shoes. Hikers will be required to sign an experience event liability waiver when checking in for the hike. Registration required. Free, chautauqua.com.

Historic landmark designation and Boulder County flag raising: 10 a.m. Friday, Museum of Boulder, 2205 Broadway, Boulder. Join Rocky Mountain Equality, Boulder County and Downtown Boulder Partnership to celebrate the official unveiling of the National Historic Landmark plaque at the Boulder County Courthouse and the Rainbows Over Boulder County flag raising for Pride Month. 303-449-3464, museumofboulder.org.

“Unlocking Hope” exhibit opening: 6 p.m. Friday, NoBo Art Center, 4929 Broadway Unit E, Boulder. “Unlocking Hope” is a new solo exhibition by Jesse Ryan Crosby, a multidisciplinary artist, poet and musician whose work explores identity, memory, grief and healing through photography, printmaking, writing and video. Free, 919-522-1981, noboartdistrict.org.

Tom Weiser Quartet concert: 6:30 p.m. Friday, Full Cycle Café & Bar, 2355 30th St., Boulder. Tom Weiser performs the music of the golden age of jazz and the American Songbook. He also has a fondness for jazzy adaptations of more contemporary music. The band is comprised of Kyle Matsuda on keys, Cian Krueger on sax, Wyatt Wear on bass and BK Kahn on drums. $20-$25, fullcyclecafebar.com.

Organic plant exchange: 9 a.m. Saturday, Unitarian Universalist Church, 5001 Pennsylvania Ave., Boulder area. Pesticides are difficult to avoid, but they harm pollinators and undermine human health. So attend this organic plant swap. Dig up extra plants that have not been treated with pesticides, put them in a pot and bring them to the plant exchange. There will be plenty of plants for those that don’t have any to bring. Free, sierraclub.org.

“Surf’s Up” film screening: 1:30 p.m. Saturday, Meadows Branch Library, 4800 Baseline Road, Boulder. Watch a matinee showing of “Surf’s Up” with family and friends. Make a pre-movie craft at 1:30 p.m. The movie starts at 2 p.m. Snacks provided. All ages welcome. 85 minutes. Rated PG. Closed captions provided. Movie Matinee at Meadows takes place on the last Saturday of each month. calendar.boulderlibrary.org.

Kat Ellis Ensemble concert: 6:30 p.m. Saturday, Full Cycle Café & Bar, 2355 30th St., Boulder. Celebrate the close of May with a night of jazz led by Kat Ellis. Known for her emotive voice and captivating storytelling, Ellis will present a program of inspired interpretations centered on the evocative theme of summer. From sultry ballads to vibrant swing, her set promises a rich journey through the season’s moods. $20-$25, fullcyclecafebar.com.

Sundays on West Pearl: 10 a.m. Sunday, The New Local, 741 Pearl St., Boulder. Come celebrate the launch of the second annual free summer series with art activities including chalk marbled flowers, paper bugs and watercolor painting. Boulder Ensemble Theatre Company will be doing family-friendly improv at The New Local Annex, Fawns Leap will be designing bouquets for sale and live jazz will be played outside Spruce Confections. The series runs every Sunday through the end of September. Free, donations appreciated. thenew-local.org.

Editor’s note: Availability and scheduling of events may be subject to change.