A classic 50's book jacket designed by Stephen Russ (1919-1983). Russ studied at the Royal College of Art in the 1930's under Edward Bawden and Eric Ravilious and worked as a freelance designer/illustrator for many publishers in the UK. From the 1950's onwards he taught design at Bath Academy of Art. Here's the only biography I could find on the internet: http://www.baacorsham.co.uk/lightbox/srussintro.htm
Some more Penguin covers designed by Stephen Russ here: http://vintagepenguins.blogspot.co.uk/2013/10/covers-by-stephen-russ-part-one.html