From the Epic website: "Epic is the world's leading online children's subscription book service offering immediate, on-demand access to over 40,000 high-quality illustrated books and chapter books for children ages 12 and under. Epic!'s ever-expanding library also includes thousands of Read-to-Me books, Audiobooks, educational videos, and fun educational quizzes. Partnerships with leading publishers, including HarperCollins and National Geographic, bring age-appropriate, award-winning fiction and non-fiction books to your child's fingertips. We actually offer Epic for Educators for free to elementary school teachers and elementary school librarians. You can sign up for a free educator account on our website using your school email address."