"The New Men" By C. P. Snow, Cover Illustration By Philippe Jullian (published by Penguin Books, 1962, Reprinted 1963)

Three book jacket illustrations by the French illustrator, art historian, biographer and novelist Philippe Jullian (1919-1977) https://en.wikipedia.org/wiki/Philippe_Jullian  There is also a more detailed biography along with a long list of his work as a writer on JOHN COULTHART's excellent blog:  http://www.johncoulthart.com/feuilleton/2010/12/13/philippe-jullian-connoisseur-of-the-exotic/ Here's an older post featuring Philippe Jullian's work http://picturesfromanoldbook.blogspot.co.uk/2013/11/for-whom-cloche-tolls-scrap-book-of_12.html