Matt Garrish lives and works in Toronto where he does what he can to help bridge the print divide that sadly still keeps much of the world's literature and information from being available to everyone. He's worked closely with CNIB and the DAISY Consortium in their efforts to make the world a more accessible place - including editing the Z39.86 Authoring and Interchange specification - and drew on his years of experience ripping the guts out of EPUBs to make braille when invited to work as the editor of the EPUB3 revision. He is the author of "What is EPUB3?." Markus Gylling has worked in the field of information accessibility since the late nineties. As CTO of the DAISY Consortium, he has been engaged in the development of specifications, tools and educational efforts for inclusive publishing on a global scale. Markus is the chair of the EPUB 3 Working Group, and during 2011 he lead the development of the EPUB 3 specification. Since October 2011, he serves as CTO of the IDPF alongside his job with the DAISY Consortium. Markus lives and works in Stockholm, Sweden.