City-Wide Friends of the Boston Public Library Book Sale Book Sale — Boston, MA

700 Boylston Street (McKim Building, lower level), Boston, MA 02116

Oct 3, 2026

City-Wide Friends of the Boston Public Library Book Sale is holding a book sale in Boston, MA. Dates and hours: 1st Saturday of every even-numbered month, 10am-4pm, Saturday of every even-numbered month, 10am-4pm. Additional sale dates: Dec 5, 2026.

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Directions Sale details

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 ($)

Effective Cost Per Book

$0.33/book

Total Estimated Profit Margin

$115.00

Savings vs. ~$17 new retail98%

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