What began as a simple tribute to his mother who was a school teacher, Todd Bol's book sharing concept has popped up in 36 countries, according to the Associated Press.
Little Free Libraries are boxes, originally crafted into replicas of one-room schoolhouses, filled with books donated for sharing.
The premise is simple. Old books get dusted off a go into the box to be read again. Anybody can take a book, all that is asked in return is that the borrower either return it or lend one of their own.
After success locally and in other parts of the country, the book-sharing boxes are being embraced by a number of groups as a way of promoting literacy in inner cities and underdeveloped countries.
The Associated Press says a Minnesota-based group recently shipped books and little libraries to Ghana. Groups are also working with the headmistress of a girls' school in Accra, the country's capital, where 45 boxes were installed in poor neighborhoods.
In an interview earlier this year, Bol tells KARE 11 that with enough funding, he hopes to put up the libraries randomly one day.
Watch KARE 11's story here: