McHenry County Historical Society Book Sale Book Sale — Union, IL

6422 Main St, Union, IL 60180

Oct 11, 2026

McHenry County Historical Society Book Sale is holding a book sale in Union, IL. Dates and hours: Sunday 10 AM - 2 PM. Special pricing: Most books $1-$2, $1-$2.

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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.