Terry Pratchett's Discworld novels. Those denoted by a [UK] are
only available in Britain; the link is to amazon.co.uk , which doesn't
make one any money.
Colour of Magic
One is unsure if 'graphic edition' means that it's illustrated or that it's a graphic novel.
Guards! Guards! [UK]
Lords and Ladies
Men at Arms
Feet of Clay
The Last Continent
Carpe Jugulum [UK]
Last modified: Sun Feb 28 01:32:31 PST 1999