This issue is a variant of Irredeemable (Boom! Studios, 2009 series) #2. There exist further variants.
The 1st printing of this issue shipped with three covers, as indexed below. Per indicia: Copyright  Boom! Studios. Printed in Canada.
Spokes' variant covers to #1-12 will spell out "Irredeemable". This cover features the first R. It was offered to retailers as a 1-in-25 incentive. A "negative" variant using this cover's art also exists, as indexed below.
For the 2nd printing of this issue Cassaday's black-&-white art to Cover B was used, with typography in red.
This variant, exclusive to retailer A Comic Shop and limited to 500 copies, uses Spokes' art to Cover C in "negative".
The inside front cover has logo, credits, and indicia set against negative red-&-black detail of Cover A.
The Paradigm is named in this issue. // Story is untitled beyond series title. First line: "My name is Kaidan, as was my mother's, and her mother's before her."
Unthinkable #1 and its 7-page preview in this issue are hyped with Covers A and B.
Seven pages of the story from Unthinkable #1 are excerpted.
Gagnon writes about Mark Sable and Unthinkable in "Tick... Tick... Tick..." column. Page also includes Boom! masthead, brief Q&A with Unthinkable artist Totino, and small repros of covers to upcoming releases.
Advanced Research Technologies' JETT is advertised on the last interior page.
The inside back cover hypes The Unknown #1 with solicitation copy and cover art.
Microsoft Game Studios' videogame Halo Wars for XBox is advertised on the back cover.