Michael Howard Kay Ph.D FBCS (born 11 October 1951) is the editor of the W3C XSLT 2.0 and 3.0 language specifications for performing XML transformations, and the developer of the Saxon XSLT and XQuery processing software. Early life Michael Kay is the son of Ronald Kay (1920-2019) and Alma Brigitte Kay (née Albert) (1924-2019). His father was English, his mother German; he was born in Germany but has always lived in England. Kay was educated at Salesian College in Farnborough, and then went to Trinity College, Cambridge to read Natural Sciences. He gained his Doctor of Philosophy degree while working in the Computer Laboratory, University of Cambridge under the supervision of Maurice Wilkes on databases. Career Kay spent over twenty years (1977-2001) with the British computer manufacturer International Computers Limited (ICL). He was appointed an ICL Fellow in 1990. On leaving ICL, he worked for three years with Software AG before forming his own company, Saxonica. He has previously been involved in GedML: Genealogical Data in XML. Publications Kay is the author of the book XSLT: Programmer's Reference by Wrox Press and several other books and papers on software engineering. He lives and works in Reading, England and is a member of the XML Guild and a regular speaker at the XML Summer School in Oxford and Balisage Markup conference. References 1951 births Living people Alumni of Trinity College, Cambridge ICL Fellows International Computers Limited people XML Guild Fellows of the British Computer Society People educated at Salesian College, Farnborough