Comic Title: Mighty Avengers #21
Publisher: Marvel
Cover Date: March 2009
On Sale Date: January 21, 2009 Direct Market Date January 14, 2009
Source: Marvel Previews, Special Dark Reign Edition

Direct Market Date January 14, 2009
Source: Marvel Previews, #63
Year misprinted 2008

Direct Market Date January 14, 2009
Source: Previews, #242
Year misprinted 2008

Direct Market Date January 21, 2009
Source: ComicList, New Comic Book Releases List for Wednesday, January 21, 2009

Direct Market Date February 4, 2009
Source: ComicList, New Comic Book Releases List for Wednesday, February 4, 2009
Corrected Copy

Cover Price: $2.99
Page Count: 32
Editor: Tom Brevoort

Title: "The Smartest Man in the Room"
Pages: 36

Feature(s):
Avengers

Writer: Dan Slott
Penciller: Khoi Pham
Inker: Allen Martinez
Letterer: Dave Lanphear
Colorist: Jason Keith

Reprinted In:
Mighty Avengers:Earth's Mightiest HC (2009)
Mighty Avengers:Earth's Mightiest TPB (2010)
Avengers:I Am an Avenger II TPB (2010)
Mighty Avengers Vol. 3 HC (2011)
Mighty Avengers by Dan Slott:The Complete Collection TPB (2019)