I haven't been reading light fiction for a while because of my academic commitments, but I picked up Feet of Clay recently and remembered just what it was I liked about Pratchett - ditto Thud! I am gutted - I can't believe he has gone. I had been contemplating writing an article on his stuff for uni only recently.Think what it must be like to have such a talent that your work actually touched other people's lives, via escapism into the immensely enjoyable books. Above all, he took the fantasy genre and satirised it - to me, it made it less po faced and more accessable.
"Don't think of it as dying..just leaving early to avoid the rush.." (Terry Pratchett - Good Omens).
RIP - MISTER Pratchett. You are already sorely missed.