Take a book, leave a book - Tallinn's public bookcases, street libraries and exchange shelves.

Tallinn has quietly grown a network of little street libraries: cabinets, shelves, a greenhouse, even a converted fridge, all working on the same rule - take a book, leave a book, no card and no due date. Some are run by district governments and Lions clubs, some were built by school pupils, and some just appeared because a neighbourhood wanted one.
This map gathers the free-standing book-sharing spots across the city, from Town Hall Square to a book shelter on the edge of Kakumäe. On top of these, every branch of Tallinn Libraries (about 20 across the city) keeps an indoor exchange shelf, and the library gives away withdrawn books to anyone running a community book cabinet - so if you want to start your own box, they will help stock it.
Locations come from OpenStreetMap and local sources. Boxes like these come and go, so if one has moved or vanished, that's the nature of the genre.