He named his seven favorite funny books for the Guardian. One title on the list:
Mort by Terry PratchettRead about another book on the list.
Strictly speaking, not really a kids' book, well, not for younger kids anyway, but still. It's an hilarious tale about a young man who takes up a new Discworld apprenticeship - with Death himself. He starts taking over more and more of Death's tasks, as Death is rather bored of it all, and is more interested in finding out what it's actually like to be a human. Oh, and eating curry. Mort is full of great little amusing moments and appeals to my sense of turning things on their head and seeing where it leads you. Lots of great Pratchetty comic dialogue and whimsy.
"Pardon me for living, I'm sure."
"NO ONE GETS PARDONED FOR LIVING."
--Marshal Zeringue