Sponsor link https://www.neh.gov/grants/odh/FOBP?utm_medium=email&utm_source=govdelivery
The Fellowships Open Book Program is a limited competition designed to make outstanding humanities books digitally available to a wide audience. By taking advantage of low-cost e-book technology, the program will allow teachers, students, scholars, and the public to read humanities books that can be downloaded or redistributed for no charge.
This program is open to publishers who have published within the last seven years (or will publish during the period of performance) a book supported by an NEH programs. See more information at above link.