Chicago has started its annual summer reading program.
The program is called Rahm's Readers Summer Learning Challenge after the mayor and designed to encourage children of all ages to pick up books.
This year, there's an added challenge. Tonight Show host Jimmy Fallon agreed to tape an episode of the show in Chicago if children in the city read 2.4 million books. Last summer Chicago children read 2.1 million books equally roughly 56 million minutes of summer reading.
It's a free program funded through the Chicago Public Library Foundation.
This year the library is adding an early literacy component for children up to 5 years old.