The guiding purposes of National Braille Press are to promote the literacy of blind children through braille and to provide access to information that empowers blind people to actively engage in work, family, and community affairs.
You can find braille books for children, print/braille picture books and even braille toys at the NBP website. Be sure to check out their ReadBooks Program:
And their Children’s Braille Book Club:
And their Great Expectations Program: