- 14 June 2007 in the United Kingdom by John Murray, an imprint of Hachette Livre UK
- 31 July 2007 in Canada by Alfred A. Knopf, an imprint of Random House
- 31 July 2007 in the United States by The Dial Press, an imprint of the Dell Bantam Publishing Group, a divsion of Random House
Shown below are the three cover designs, in order of preference (from left to right: British, Canadian, American).
The Americans seem to have put more effort into the design of book’s website than they did into the design of its cover…