Shelf Life: Sci-Fi master John Scalzi and dragon fantasy queen Tui T. Sutherland visit Boulder; naturalist Sy Montgomery comes to Longmont and more author visits

• 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 .

Public libraries

Boulder Public Library: Main Branch, 1001 Arapahoe Ave.; Meadows Branch, 4800 Baseline Road; George Reynolds, 3595 Table Mesa Drive and NoBo Corner Library, 4600 Broadway; 303-441-3100; boulderlibrary.org .

Carnegie Branch Library for Local History:

National Science Digital Library:

Norlin Library: University of Colorado Boulder, 1720 Pleasant St., Boulder; colorado.edu/libraries .

Lafayette Public Library:

Longmont Public Library:

Louisville Public Library:

Lyons Community Library:

Nederland Community Library:

Book stores

Barbed Wire Books:

Barnes and Noble:

Beat Book Shop:

Blue Owl Books:

The Bookworm:

Boulder Book Store:

Inkberry Books:

Juniper Books:

Lighthouse Bookstore: 1201 Pearl St. Mall, Boulder, lighthousebookstoreofboulder.com ; metaphysical titles

Little Horse Vintage: 820 Main St., Louisville, littlehorsevintage.com , rare and collectable books

The Read Queen Bookstore and Café:

Trident Booksellers and Café:

Used Book Emporium: