UK Cover Art | ||
 Faber & Faber 1964 Artist: Brian C Rigby | 
Four Square 1965 Artist: unknown |
Coronet 1973 Artist: Chris Foss |
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Second Impression 1974 Artist: Chris Foss | Remploy Edition 1980 Artist Unknown | Third Impression 1981 Artist: Chris Foss |
USA Cover Art | ||
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Lancer Books (NY) 1964 Artist: Ed Emshwiller Image of book from the collection of | Lancer Books (NY) 1967 Artist: unknown Image of book from the collection of | Ace Books (NY) 1978 Artist: Dean Ellis |
Portugese Cover Art |
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Editora Livros do Brasil, Lisbon, Portugal 1967 Artist: unknown Image of book from the collection of Roger |
