When I first read this book as a kid, I was struck by the warped angles and stark design of its cover. In order to look up more examples of such art/design, it would be helpful to know what genre/movement such art is from. If anyone knows the artist who designed this cover, that would be great too.
I do not have a definitive answer. But it reminds me of soviet constructivism: https://www.google.com.mx/search?q=constructivist+ilustration
It reminds me also the metropolis poster: https://www.google.com.mx/search?q=metropolis+original+poster
which probably had some futurism influence: https://www.google.com.mx/search?q=futurism+art
It also has some elements common in the 80 aerograph style; Aerograph, gradients and masks), but darker.