Friends of the Longmont Library Book Sale — Longmont, CO

Longmont, CO 80501

Sep 28, 2026

Friends of the Longmont Library Book Sale · Hours: 9 am - 4:45 pm

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Bag Day Profit Calculator

Estimate your cost per book and resale margin before you go.

Bag / Entry Cost ($)

Estimated Books per Bag

Average Estimated Resale Value ($)

Savings vs. ~$17 new retail98%

Estimates only — resale values vary by title, condition, and marketplace fees.