And unsurprisingly, they made a fantastic addition - when the world is not a generic fantasyland, but something utterly different, Isaac Stewart's (did I mention he's fantastic?) illustrations really do convey the nature of this new, storm-wracked world. So I got to thinking: could other fantasies also benefit from similar illustrations?
And immediately - though maybe not that immediately! - I came up with another example: Jonathan Strange and Mr Norrell. If you don't know it, it's a historical fantasy about the return of English magic though the occasionally-blundering figures of Jonathan Strange and - you guessed it - Mr Norrell. In this case, the illustrations aren't for worldbuilding purposes, but instead portray a few moments in true period feel - and it works.
So I'm asking you. What do you think of illustrations in modern fantasy? And which books, if you like the idea, would you love to see images for?