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Bill Kasdorf, kasdorf.bill@gmail.com, is Principal of Kasdorf & Associates, LLC, focusing on editorial and production workflows, XML/HTML/EPUB modeling and specification, standards and best practices, and accessibility. He is a founding partner of Publishing Technology Partners. Bill is the W3C Global Publishing Evangelist and is active in the W3C Publishing@W3C work. He co-chairs NISO’s Video & Audio Metadata Guidelines Working Group, is a member and Past President of SSP, and is also a member of BISG’s Workflow Working Group, IPTC, and the DAISY Consortium. He received the SSP Distinguished Service Award, the BISG Industry Champion Award, and the IDEAlliance/DEER Luminaire Award. He is general editor of The Columbia Guide to Digital Publishing and serves on the editorial board of Learned Publishing. Clients have included NEJM, National Academies Press, American College of Physicians, American Psychological Association, SAGE, Harvard, MIT, Toronto, Taylor & Francis, Cambridge, IEEE, Cochrane Library, Pearson, Cengage, VitalSource, World Bank, British Library, OCLC, ORCID, and the European Union Publications Office.