Anyone who’s ever worked in a bookstore has stories to tell of the bizarre stuff they find in books. Sometimes you’ll find funny pictures of people in outdated clothing (usually stuck inside of yesterday’s bestseller thriller), receipts for the purchase of the book (boring), dollar bills (now we’re talking), love notes, unsent postcards or bad poety. Mostly, one gets used to seeing copies of the Giving Tree by Shel Silverstein with adoring inscriptions: “I’ll love you forever/I’ll be your giving tree” hawked off by semi-guilty-feeling ex’s who didn’t quite reciprocate the sentiment.

For the curious and bold, Brookline Booksmith has put together an interesting archive of stuff found in books. Highly recommended.