Files in NNELS are DAISY downloads but DAISY can be text too? And text can be enlarged and used by readers who want Large Print, so how do readers find that in NNELS?

NNELS advertises braille materials, yet NNELS is a digital library so how can that be? How does digital braille work?  Do library patrons read in braille and electronic braille very much anymore?  And what is the future of physical braille collections for libraries?