This is such a cool idea: bookcrossing! I just found out that there are no less than 395 practising book-crossers living in my city. Who knows, maybe I’ll find a lonely book somewhere in a café this weekend. The idea is so popular that it’s in the Concise Oxford English Dictionary:

bookcrossing
n. the practice of leaving a book in a public place to be picked up and read by others, who then do likewise.