• Avara Yaron will speak about and sign her book “Surging Tides: Girl Submerged” at 1 p.m. Sunday at Boulder Barnes & Noble; stores.barnesandnoble.com.

• Tween Book-to-Movie Club will meet to discuss “Shiloh,” by Phyllis Reynolds Naylor, at 3 p.m. Tuesday at Lyons Regional Library; lyons.librarycalendar.com.

• Scott Savage and Brandon Dorman will speak about and sign their book “Quantum Interstellar Sports League” at 6 p.m. Tuesday at Boulder Barnes & Noble; stores.barnesandnoble.com.

• Aimie K. Runyan will speak about her book “Mademoiselle Eiffel” at 7 p.m. Tuesday at Trident Booksellers & Café; tridentcafe.com.

• Paula Lehman-Ewing will speak about and sign her new book “Reimagining the Revolution: Four Stories of Abolition, Autonomy, and Forging New Paths in the Modern Civil Rights Movement” at 6:30 p.m. Wednesday at Boulder Book Store; $5; boulderbookstore.net.

• FI Book Club will meet to discuss finance and business books at 6 p.m. Thursday at Lafayette Library; lafayettepubliclibrary.libcal.com.

• Mirabai Starr will speak about and sign her new book “Ordinary Mysticism: Your Life as Sacred Ground” at 6:30 p.m. Thursday at Boulder Book Store; $5; boulderbookstore.net.

• HeatherAsh Amara will speak about and sign her new book “Wild, Willing, and Wise: An Interactive Guide for When to Paddle, When to Rest, and When to Jump Naked into the River of Life” at 6:30 p.m. Sept. 27 at Boulder Book Store; $5; boulderbookstore.net.

• Diana Howard will speak about her book “Nature’s Grace” at 7 p.m. Sept. 27 at Inkberry Books; inkberrybooks.com.

• Adrienne Coleman will speak about and sign her book “Tilly and Billy’s Silly Adventure” at noon Sept. 29 at Boulder Barnes & Noble; stores.barnesandnoble.com.

• Tween Graphic Novel Book Club will meet to discuss “Wings of Fire: Volume One,” by Tui T. Sutherland at 3:30 p.m. Sept. 29 at Meadows Branch; calendar.boulderlibrary.org.

• The Living Poets Society will meet to discuss “Obit,” by Victoria Chang at 5:30 p.m. Oct. 1 at Boulder Book Store; boulderbookstore.net.

• Juliet Wittman will speak about her book “Again and Again” at 7 p.m. Tuesday Oct. 1 at Trident Booksellers & Café; tridentcafe.com.

• Newcomers Book Club will meet at 10 a.m. Oct. 2 at Lafayette Library; lafayettepubliclibrary.libcal.com.

• Last Word Book Club will meet at 11:30 a.m. Oct. 2 at Lafayette Library; lafayettepubliclibrary.libcal.com.

• John Patrick Green will speak about and sign his new book “InvestiGators: Class Action” at 5:30 p.m. Oct. 2 at Boulder Book Store; boulderbookstore.net.

• First Thursdays Book Group will meet to discuss “The Great Typo Hunt: Changing the World One Correction at a Time,” by Jeff Deck at 2 p.m. Oct. 3 at Longmont Library; longmontcolorado.gov.

• Book Queeries will meet to discuss “We Mostly Come Out at Night,” an anthology edited by Rob Costello at 5 p.m. Oct. 3 at Rocky Mountain Equality Center, 3340 Mitchell Lane, Boulder; calendar.boulderlibrary.org.

• Michael J. Henry will speak about and sign his new book “Mountain Biking the Colorado Trail: Tips, Tricks, and What You Need to Know for a Great Bike-Packing Experience” at 6:30 p.m. Oct. 3 at Boulder Book Store; $5; boulderbookstore.net.

• John Scalzi will speak about and sign his new book “Starter Villain” at 6:30 p.m. Oct. 3 at First Congregational Church, 1128 Pine St., Boulder; $10; boulderbookstore.net.

• Sy Montgomery will read from her book “The Hawk’s Way: Encounters with Fierce Beauty” at 6:30 p.m. Oct. 7 at Lafayette Library; lafayettepubliclibrary.libcal.com.

• Diversity Book Club will meet to discuss “The Hate U Give,” by Angie Thomas at 2 p.m. Oct. 8 at Reynolds Branch; calendar.boulderlibrary.org.

• Dr. Jennifer E. Mabry will speak about and sign her new book “Fighting to be Seen: A Civil Rights Baby Reflects on Life in Post-Integration America” at 6:30 p.m. Oct. 8 at Boulder Book Store; $5; boulderbookstore.net.

• Sy Montgomery will speak about her books at 7 p.m. Oct. 8 at Longmont Museum; longmontcolorado.gov.

• Kristin Owens will speak about and sign her new book “Elizabeth Sails” at 6:30 p.m. Oct. 10 at Boulder Book Store; $5; boulderbookstore.net.

• Jenny Dandy will speak about her book “The Brownstone on E. 83rd” at 7 p.m. Oct. 12; inkberrybooks.com.

• Tui T. Sutherland will speak about and sign the collector’s edition of her book “The Dragonet Prophecy: Limited Edition” at 4 p.m. Oct. 13 at Boulder Book Store; boulderbookstore.net.

• Second Mondays Book Group will meet to discuss “Replay,” by Ken Grimwood at 6 p.m. Oct. 14 at Longmont Library; longmontcolorado.gov.

• Sci-Fi Bookclub will meet to discuss “The City & The City,” by China Miéville at 7 p.m. Oct. 15 at Nederland Community Library; nederland.libcal.com.

• Paper and Spine Used Book Sale will take place during library hours Oct. 16-22 at Boulder Public Library; calendar.boulderlibrary.org.

• Warren M. Hern will speak about and sign his new book “Abortion in the Age of Unreason: A Doctor’s Account of Caring for Women Before and After Roe V. Wade” at 6:30 p.m. Oct. 16th at the St. Julien Hotel, 900 Walnut St., Boulder; $10; boulderbookstore.net.

• Tim Z. Hernandez will speak about and sign his new book “They Call You Back: A Lost History, A Search, A Memoir” at 6:30 p.m. Oct. 17 at Boulder Book Store; $5; boulderbookstore.net.

• Books & Brews YA Book Club will meet at 7 p.m. Oct. 17 at Odd13 Brewing, 301 E. Simpson St., Lafayette; lafayettepubliclibrary.libcal.com.