Magic Keys offers dozens of free eBooks for children.
Project Gutenberg hundreds of children’s books, most of them classics.
FreeKidsBooks.org titles for children that can be downloaded for free as PDFs or read online.
Oxford Owl free E Book library developed for children aged 3–11 years old.
ICDL is an international non-profit that boasts over 4,000 titles in 59 languages. The complete collection is available via their free iPad app.
Epic Epic School is free for educators and students with class code log in access from 7 a.m. to 3 p.m. when school is physically in session.