The following organizations produce and distribute braille books free of charge to children. This is not a comprehensive list but provides a good way to start building your child’s library!
National Braille Press ReadBooks! Program (one book bag per child)
https://www.nbp.org/ic/nbp/programs/readbooks/readbooks.html
Seedlings Angel Book Giveaway (5 free books each year)
https://www.seedlings.org/free-program/#book-angel
American Action Fund for Blind Children and Adults (1 book each month)
https://actionfund.org/programs/braille-books-program/
Braille Institute Special Collection (up to 8 books every year)
https://www.brailleinstitute.org/special-collections
Temple Beth El Braille Bindery (specific titles can be ordered)
https://www.freebraillebooks.org/
Dolly Parton’s Imagination Library (APH’s Braille Tales Print/Braille Book Program) (6 books every year until 6th birthday)
https://sites.aph.org/dolly-partons-imagination-library/
Seedlings The Rose Project (World Book Encyclopedia articles in braille)
https://www.seedlings.org/free-program/#rose-project
NLS Braille Collection and Talking Book Program
https://www.loc.gov/nls/services-and-resources/informational-publications/talking-books-reading-disabilities/
Audiobook Resources
The following are sources of free audio downloads of books.
Audio files of Dolly Parton’s Imagination Library books
https://sites.aph.org/dolly-partons-imagination-library/free-audio-books/download/
Braille Books for Purchase
Seedlings
https://www.seedlings.org/shop/
(Seedlings sometimes has spontaneous free book giveaways. Get on their email list or check their Facebook page.)
Future Aids: The Braille Superstore
http://www.braillebookstore.com/Braille-Bookstore
National Braille Press Children’s Braille Book Club
http://www.nbp.org/ic/nbp/programs/cbbc/cbbc.htm