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2020 Friends Foundation Used Book Sales

  • March 4 - March 7, 2020   Spring Used Book Sale (NEW for 2020!)
  • Canceled - Summer Used Book Sale
  • November 18 - November 21  Winter Used Book Sale

Preview Sale for Friends

Friends of Knowledge and up (membership levels at $50 and up) receive exclusive access to book sale preview sales which occur the evening before each book sale. You will automatically receive 10% off your purchase at the checkout. 

Click here to become a Friend of Knowledge and get VIP access to book sale preview events.


Sign up here. We also host individuals and groups from schools, organizations and companies throughout the Denver Metro Area during the book sale. Call us at 720-865-1705 to book a large group.

If you sign up for closing help at our book sales, you get a free box of books!

All volunteers, teachers and DPL staff receive a 25% discount during the sale (not including the Red Chair Bookshop.)

Sponsor the Sale

Imagine a book sale so big it fills the Denver Central Library Conference Center and beyond! Our used book sales are four-day events that attract nearly 6,000 – 8,000 visitors from around the Denver Metro Area and other western states.

Want to learn more about sponsorship? Call 720-865-2051 for more information.

Thank you to our event sponsors: