You don’t have to be a certified library geek to grok the fun little website called Library Spy. “This is a live, unfiltered look at what books are being checked out of the Seward Park library, a branch of the New York Public Library in Manhattan. Every disappearing book reveals a moment of curiosity, interest, or intrigue happening right now in the neighborhood. I am continuously scraping book availability from the library’s website. Each time the number of available copies decreases — from 3 copies to 2, or 1 to none — we know someone has just checked it out. The quiet pulse of readers making their next pick.”