In 1999, Pratchett appointed both Cohen and Stewart as "Honorary Wizards of the Unseen University" at the same ceremony at which the University of Warwick awarded him an honorary degree.
1999-ben Pratchett Cohennek és Stewartnak a "Honorary Wizards of the Unseen University" címet adományozta ugyanazon a ceremónián, aminek alkalmával megkapta a Warwick Egyetemtől a tiszteletbeli doktori címet.