The QED stands for Quality, Excellence, Design. It’s the “Good Housekeeping Seal of Approval” for ebooks and enhanced ebooks.
All recipients of the QED, offered up until 2014, had to pass a thorough, independent 13-point quality assurance test across multiple formats and devices.
Developed by Digital Book World, with support from leading ebook retailers and industry associations, the QED is a signal to the readers of your client’s ebooks that the book will render beautifully on any screen on which they choose to read.
The QED program was offered from 2011-2014, but is no longer active.