Jasmin Blanchette, Trolltech's documentation manager and a senior developer, has worked at Trolltech since 2001. He is editor of Qt Quarterly, Trolltech's technical newsletter, and coauthored C++ GUI Programming with Qt 3.
Mark Summerfield works as an independent trainer and consultant specializing in C++, Qt, and Python. He was Trolltech's documentation manager for almost three years and coauthored C++ GUI Programming with Qt 3.