When I was out for a walk in my neighborhood one day, I spotted this and had to stop. What? A "Little Library" just planted along the sidewalk. Someone built a charming little box (a bit larger than a mail box) and stocked it with books to share. What a generous and genius idea!
As you can see, it states "Please take a book if you see one you like, and leave a book when you have one to share." No signing a card. I love the level of trust in the goodwill of people to be able to set this up. I intend to go back one day and take a book, and leave one to share.
Don't you wish that more people in the world would do this? Maybe you could be the first in your neighborhood.