The Library of Congress Literacy Awards were created in 2013 “to support organizations working to alleviate the problems of illiteracy, both in the United States and worldwide”. They have 3 categories, 2 of which are open to organisations based outside the United States.
Last year’s winners and a selection of best practices can be accessed through this link
The 2015 edition’s application phase is now open, until next 31th March.
Check all the information here