Library Spy

Naperville Library Spy

A live, unfiltered look at what books are being checked out across the Naperville Public Library. Every disappearing copy is a quiet pulse of curiosity somewhere in the city.

This site watches public availability data from the library catalog. When the number of available copies drops (3 copies to 2, or 1 to none), we log an event. The data is anonymous and only reflects availability changes. Holds, processing, and renewals can also trigger a drop.
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