Daliyah Marie Arana was named “librarian for the day" by the Library of Congress in Washington D.C.
The first African-American and woman becomes Library of Congress' new chief executive. She's widely praised for promoting technology at libraries in low-income neighborhoods.
"As a descendant of people who were denied the right to read, to now have the opportunity to serve and lead the institution that is the national symbol of knowledge, is a historic moment," Carla Hayden said at her swearing-in ceremony.
