Jirka Kosek is a freelance XML consultant and teacher at University of Economics in Prague. He has over ten years experience in providing XML consultancy and training. Jirka is an active member in several standardization bodies—OASIS (DocBook TC and RELAX NG TC), W3C (XSL WG and ITS WG) and ISO/IEC JTC1/SC34 (DSDL, Topic Maps).
Jirka Kosek is an author of several books about Web technologies. He also wrote numerous articles for IT developer magazines. In his free time he is contributing code into DocBook XSL stylesheets open-source project.