Owner of Pragma Advanced Document Engineering, which specialized in automated typesetting. Pragma assists organizations in implementing publishing on demand workflows based on TeX or XML or both.
Hans is the developer of ConTeXt, a document preparation tool built with TeX macros.
Han The Thanh, born 1972, Vietnam. University of Education in Hochiminh City, Vietnam. Studied Informatics at Masaryk university, Brno, Czech, 1991-2001. TeX user since 1994, on UNIX, mainly for typesetting bulletins and theses. Worked on pdfTeX and vietnamese support (fonts, macros) for TeX. Hobbies: sports (swimming, hiking, football).
Jim Hefferon is mathematician and currently chair of the Math Department at St. Michael's College in Colchester, VT USA.
He first got interested in TeX when he was writing an undergraduate text that is freely available.
His primary activities these days are: teaching, running the TUG branch of CTAN, and trying to find time for his wife and two boys.
When I heard about TeX in 1979 or so, it seemed a dream come true-- all the fun, but none of the mess--, and I've never looked back. Oxford University Press published my book TeX Unbound a few years ago.
My day job is professing mathematics at the City University of New York.
Jean-Michel is 43 years old and lives in the East of France, near to the Swiss border.
In 1989, he defended a Ph.D. about algebraic specifications. Then he worked on critical software. In 1994, he became an Assistant Professor at the Computer Science Department of the University of Franche-Comte.
Jean-Michel is interested in internationalisation of software. In 2001 he started a new implementation of BibTeX, so-called ``Multilingual BibTeX'' because it includes multilingual features.