• Paper & Spine will hold a used book sale Friday-Tuesday during normal library hours at the Boulder Main Library; calendar.boulderlibrary.org.
• Kerry Siggins will speak about her book “The Ownership Mindset” at 4 p.m. Friday at the Boulder Barnes & Noble; stores.barnesandnoble.com.
• Michelle Hagood will discuss her book “The North Tower” at 11 a.m. Saturday at the Boulder Barnes & Noble; stores.barnesandnoble.com.
• Henry Winkler and Lin Oliver will speak about and sign their new book “Detective Duck: The Case of the Strange Splash” at 11 a.m. Saturday at Unity of Boulder Church, 2855 Folsom St.; boulderbookstore.net.
• KP McCarthy will discuss his book “Mortal Weather” at 11 a.m. Sunday at Boulder Barnes & Noble; stores.barnesandnoble.com.
• Tween Book Club will meet at 3:15 p.m. Tuesday at Lyons Community Library; lyons.librarycalendar.com.
• Temple Grandin will speak about and sign her new book “Visual Thinking: The Hidden Gifts of People Who Think in Pictures, Patterns, and Abstractions” at 6:30 p.m. Tuesday at Unity of Boulder Church, 2855 Folsom St.; $21.50; boulderbookstore.net.
• Nyasha Williams will speak about and sign her new oracle deck “Elemental Alchemist Oracle Deck & Guidebook” at 6:30 p.m. Wednesday at Boulder Book Store; $5; boulderbookstore.net.
• The FI Book Club will meet to discuss books about finance and business at 6 p.m. Thursday at the Lafayette Public Library; lafayettepubliclibrary.libcal.com.
• Sophia Stone will speak about her book “Dora-Doreen” on Oct. 27 at Inkberry Books; inkberrybooks.com.
• Natalie Hodges will discuss her book “Uncommon Measure: A Journey Through Music, Performance, and the Science of Time” at 7 p.m. Oct. 27 at Louisville Library; louisville-library.org.
• Donald Samson will discuss his book “The Dragon Boy” at 10:30 a.m. Oct. 28 at the Boulder Barnes & Noble; stores.barnesandnoble.com.
• Cindy Maynard will discuss her books “Finding the Way” and “Esperanza’s Way” at 7 p.m. Oct. 28 at Inkberry Books; inkberrybooks.com.
• Tween Graphic Novel Book Club will meet to discuss “The Witch Boy,” by Molly Knox Ostertag at 3:30 p.m. Oct. 29 at the Meadows Branch of the Boulder Public Library; calendar.boulderlibrary.org.
• Newcomers Book Club will meet at 10 a.m. Nov. 1 at Lafayette Public Library; lafayettepubliclibrary.libcal.com.
• Last Word Book Club will meet at 11:30 a.m. Nov. 1 at Lafayette Public Library; lafayettepubliclibrary.libcal.com.
• Ashish Kothari will speak about and sign his new book “Hardwired for Happiness: 9 Proven Practices to Overcome Stress and Live Your Best Life” at 6:30 p.m. Nov. 1 at Boulder Book Store; $5; boulderbookstore.net.
• First Thursdays Book Group will meet to discuss “Winston Churchill,” by John Keegan at 2 p.m. Nov. 2 at Longmont Library; longmontcolorado.gov.
• Book Queeries will meet to discuss “The Prince and the Dressmaker,” by Jen Wag at 5 p.m. Nov. 2 at Out Boulder County, 3340 Mitchell Lane; calendar.boulderlibrary.org.
• Diana Licalzi will speak about and sign her new book “The Type 2 Diabetes Revolution: A Cookbook and Complete Guide to Managing Type 2 Diabetes” at 6:30 p.m. Nov. 2 at Boulder Book Store; $5; boulderbookstore.net.
• Get Lit(erary) teen book club will meet at 1 p.m. Nov. 5, at Louisville Library; louisville-library.org.
• Kaye Graham will discuss her new book “The Swan Song” at 4 p.m. Nov. 5 at Inkberry Books; inkberrybooks.com.
• Jessica Pierce will discuss her book “Who’s a Good Dog?” at 6 p.m. Nov. 8 at Longmont Library; longmontcolorado.gov.
• Laura Krantz will speak about and sign her new book “Is There Anybody Out There?: The Search for Extraterrestrial Life, from Amoebas to Aliens” at 6:30 p.m. Nov. 8 at Boulder Book Store; boulderbookstore.net.
• J Scott Savage will discuss his book “Graysen Foxx and the Treasure of Principal Redbeard” at 4 p.m. Nov. 9 at the Boulder Barnes & Noble; stores.barnesandnoble.com.
• Melissa Coss Aquino, J. Michael Martinez, Emily Pérez and Marisa Tirado will speak about and sign their new books at 6:30 p.m. Nov. 9 at Boulder Book Store; $5; boulderbookstore.net.
• Author Ellen Mayer and illustrator Brizida Magro will celebrate the release of their new book “Gift & Box” at 3:30 p.m. Nov. 10 at The Wandering Jellyfish Bookshop; twjbookshop.com.
• Andrea Beaty will speak about and sign her new book “Lila Greer, Teacher of the Year” at 6:30 p.m. Nov. 10 at Boulder Book Store; boulderbookstore.net.
• Bren Worthington will discuss her book “You Are Not Crazy: How to Identify a Narcissist and Recover from Narcissistic Abuse” at 7 p.m. Nov. 10 at Inkberry Books; inkberrybooks.com.
• Elea Plotkin will discuss her book “The Procedure” at noon Nov. 11 at the Boulder Barnes & Noble; stores.barnesandnoble.com.
• Second Mondays Book Group will meet to discuss “Remarkably Bright Creatures,” by Shelby Van Pelt at 6:30 p.m. Nov. 13 at Longmont Library; longmontcolorado.gov.
• Jennifer Nicole Bacon will speak about and sign her new book “I Am an Antiracist Superhero: With Activities to Help You Be One Too!” at 5:30 p.m. Nov. 14 at Boulder Book Store; boulderbookstore.net.
• Sci-Fi Book Club will discuss “Neuromancer,” by William Gibson at 7 p.m. Nov. 14 at Nederland Community Library; nederland.libcal.com.
• Brook Eddy will speak about and sign her new book “Steeped: Adventures of a Tea Entrepreneur” at 6:30 p.m. Nov. 15 at Boulder Book Store; $5; boulderbookstore.net.
• From Our Shelves will discuss “Trust,” by Hernan Diaz at 7 p.m. Nov. 15 at Boulder Book Store; boulderbookstore.net.
• Donald W. Burnes will speak about and sign his new book “When We Walk By: Forgotten Humanity, Broken Systems, and the Role We Can Each Play in Ending Homelessness in America” at 6:30 p.m. Nov. 16 at Boulder Book Store; $5; boulderbookstore.net.
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: 1125 Pine St., Boulder; open by appointment only; localhistory.boulderlibrary.org.
National Science Digital Library: 3450 Mitchell Lane, Boulder; nsdl.oercommons.org.
Norlin Library: University of Colorado Boulder, 1720 Pleasant St., Boulder; colorado.edu/libraries.
Lafayette Public Library: 775 W. Baseline Road, Lafayette; lafayetteco.gov/library.
Longmont Public Library: 409 Fourth Ave., Longmont; longmontcolorado.gov/library.
Louisville Public Library: 951 Spruce St., Louisville; louisville-library.org.
Lyons Community Library: 405 Main St., Lyons; lyons.colibraries.org.
Nederland Community Library: 20 Lakeview Drive, Nederland; nederland.colibraries.org.
Book stores
Barbed Wire Books: 504 Main St., Longmont, barbedwirebooks.org, new and used titles
Barnes and Noble: 2999 Pearl St., Boulder, barnesandnoble.com, new titles
Beat Book Shop: 1200 Pearl St., Boulder, beatbookshop.com, used and antique titles
Blue Owl Books: 176 CO-119, Nederland, facebook.com/BlueOwlBooks, used titles
The Bookworm: 3175 28th St., Boulder, boulderbookworm.com, used titles
Boulder Book Store: 1107 Pearl St., Boulder; boulderbookstore.net, new titles
Inkberry Books: 7960 Niwot Road, Suite B-3, Niwot, inkberrybooks.com; new and used titles
Juniper Books: 1501 Lee Hill Drive, Boulder, juniperbooks.com; hand-assembled new titles
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: 129 N. Harrison Ave., Lafayette, thereadqueen.com, new and used titles
Trident Booksellers and Café: 940 Pearl St., Boulder, tridentcafe.com, new and used titles
Used Book Emporium: 346 Main St., Longmont, usedbookemporium.net, new and used titles
The Wandering Jellyfish: 198 2nd Ave., Niwot, twjbookshop.com, young adult and children’s new titles
Interested local authors can submit new books to the Author Spotlight at bit.ly/BoulderCountyAuthors. Book stores can submit book events to [email protected] with “book event” in the subject line.