Like its name, Pohon Pustaka (tree of books) is no ordinary library, as it’s made of three wooden box structures built into a 20-meter tall mango tree. The three boxes are connected by wooden stairs. The top level is used as a reading room, the middle a communal area, and the lowest a music studio.

The library, located in the Bontongan village, Enrekang Regency, in South Sulawesi, was named Pohon Pustaka (the tree of books) because most of i