Today I spotted the new Gollancz "SF Masterworks" edition of Arthur C Clarke's Childhood's End in Waterstones. What's interesting is that it has a hardback cover rather than the usual paperback that most of the other books in the series have. I assume this is because another publisher has the rights to the paperback.
Gollancz has done something similar with their editions of Frank Herbert's Dune and Philip K Dick's The Man in the High Castle. Currently they also have a hardback of H.G. Well's The Island of Doctor Moreau.
As with the other books in the series it has been given what I can only describe as a "yellow" makeover. Compare and contrast the actual cover with the original artwork (the first image).
Childhood's End deals with the arrival of an advanced alien race who seem to have some knowledge about mankind's ultimate destiny. It's been a while since I read the book so I may treat myself to the new edition.