Brown Bag Book Discussions take place the second Tuesday of the month. This month’s meeting is from noon-1 p.m. Tuesday, Dec. 10 in the Putnam Community Room at the Petaluma Regional Library, 100 Fairgrounds Drive. This month’s book is Mary Shelley’s Frankenstein. And yes, feel free to take your lunch.

Interested in learning about WordPress? A workshop for beginning and intermediate WordPress students is from 10 a.m.-noon Wednesday, Dec. 11 at the Petaluma Senior Center, 211 Novak Drive. Attendance is limited to 10 people; cost is $35. To learn more or sign up visit mediadesignservices.com or call Blake Webster at 836-8389.

At Death Cafes, people come together in a relaxed and safe setting to increase awareness of death with a view to helping people make the most of their finite lives. Facilitator Karen Garber, a local Hospice nurse, leads the evening, which is from 7-8:30 p.m. Thursday, Dec. 12 at the Sunflower Center, 1435 N. McDowell Blvd. For information on the death café concept, visit deathcafe.com. For details about this event, e-mail purplekbg@yahoo.com.

The Petaluma Library offers a beginning Internet class from 10-11 a.m. Thursday, Dec. 12 for adults and teens. Class size is limited; registration is suggested. Stop at the reference desk or call 763-9801, ext. 5. Participants will learn to navigate the library’s website, use the catalog, access library accounts and use Google.

Get in the holiday mood with the tinselly twang and tunes of the Christmas Jug Band. Hustle down to the Twin Oaks Tavern to enjoy the festive music from 8-10:30 p.m. Friday, Dec. 13. How can you resist the lure of a group that bills itself “100 percent acoustic-folk-skiffle-swing-holiday highjinks”? The tavern is at 5745 Old Redwood Highway. Tickets are $12 and are available in advance at the bar. Visit twinoakstavernpenngrove.com.

Experience the spirit of the holidays through music with the Cinnabar Singers. This community chorus offers its traditional holiday concert at 7:30 p.m. Saturday, Dec. 14 at the United Church of Christ, 825 Middlefield Drive. Musical selections include Ralph Vaughan Williams’ Mass in G Minor and Peace on Earth by Arnold Schoenberg. Settings of favorite holiday pieces showcase different sections of the choir, and take your best voices — rumor has it there may be a sing-along. Tickets are $10-$15 and available by calling 763-8920 or visiting cinnabartheater.org.

Art for Christmas? Why not? Shop local galleries from 5-8 p.m. Saturday, Dec. 14, during the monthly Second Saturday Art Walk. Participants include Art Without Labels, Calabi Gallery, CW Gallery, Gallery One, Ricky Watts Studio, Riverfront Art Gallery and Viva Cocolat. Visit petalumadowntown.com.

Explorers Post 9400 collects donations for its 13th annual Toys for Tots at a toy and food drive from 9 a.m.-3 p.m. Saturday, Dec. 14. Donations of new unwrapped toys for boys and girls up to 12 and along non-perishable food items can be dropped off at the Wilmar Volunteer Fire Department, 3825 Bodega Ave. All donations will be turned over to Petaluma’s Christmas Cheer program. Visit wilmarfire.com.