Peter Diamandis

In England, there is a dividing line between artists and illustrators, who are thought inferior to painters. Well, that's absolute rubbish. Some of the most creative work is being done in children's books. In Japan, everything is art. They don't say painting is better than ceramics or dress design.

All my grandchildren bake. On a Saturday, Annabel's boys, Louis and Toby, always bake. Louis makes a chocolate cake, Toby makes banana or lemon drizzle. They're 12 and 10, and they can do it totally on their own. My son's twin girls, Abby and Grace, are 14; they make birthday cakes and like to do it on their own with Mum out of the way.