Better World Books
Better World Books will either sell the books to raise funds for global literacy organizations or they’ll donate them directly to partners in the developing world.
Books for Africa
Books for Africa accepts medical/health books to under 10 years old. Global Medical Libraries mentions the following “As long as the textbook contains current information and/or fundamental information, which is valid today and/or visuals (no matter the publication date), it will certainly be a wonderful educational resource for a GML recipient.”