Publisher: Scribner (USA).
Year of publication: 2011.
State: uncorrected proof (light blue wrappers), with publisher's letter.
Print run: unknown.
Publisher: Hodder & Stoughton (UK).
Year of publication: 2011.
States: uncorrected proof (trade edition cover art) in two states. 1) Has "Embargoed. Hodder & Stoughton" printed on the pages, 2) does not. The numbering schemes differ as well.
Print run: 400 and 70. This has not been confirmed and they appear to be scarcer than that.
Image source: jhanic.
Description: biomieg.