The recent John Blanche post I did put me in mind of an old book I bought many moons ago, Realms of Fantasy by Malcolm Edwards & Roberts Holdstock.
This illustrated fantasy art book published in 1983 by Paper Tiger, contained descriptions of ten seminal fantasy works. With each of the chapters (and associated work) illustrated by a different artist.
For Gormenghast by Mervyn Peake, this was illustrated by Ian Miller.
Below are some of the illustrations from the book, well worth a look if you can find, though long out of print.
