9 Things You Need to Know About ePub3
5. Make your content accessible to a vastly larger market
ePub 3 is superseding a specialized format (DAISY DTBook) for making publications accessible to people with disabilities. This is not just for the blind. More and more people need larger print to comfortably read, and physically distributing large-print books for every title is not realistic. Dyslexic and physically disabled readers also find traditional paper books challenging. And, we are all "situationally disabled": We shouldn't read while driving, and most of us, while learning to read—either as children or as adults studying a foreign language—have wanted to listen and read simultaneously. Every ePub-based e-book can be, with a single click to increase the font size, a large-print edition. ePub 3 also supports "media overlays" that enable prerecorded audio to be synchronized with text (and it's already in Apple iBooks).