White's Books.

Illustration by: Petra Borner.
This style of illustration creates lots of impact for a book cover, really bold and simple use of imagery across the whole cover.

Illustration by: Stanley Donwood.
This cover design is so distinctively illustration by Donwood using the printing technique of lino-printing, which produces impact with the use of just line quality only. The colour within this cover again creates more impact as it work well with just the use of limited colour.

Illustration by: Joe McLaren.
Simple use of colour and quite a busy style of illustration for the cover.

Overall the set works really well even though each book cover has been illustrated by a different designer. They work so well because of the simple use of colour and the same layout throughout the series.