1979 - Anatomy of a Cover - Power Man and Iron Fist #56 by Bob Layton

Power Man & Iron Fist - A Mighty Marvel Bonus - Behind the scenes

From Power Man and Iron Fist #69

1977 - John Byrne's caricature of Power Man and Iron Fist

http://romitaman.com/GalleryPiece.asp?Piece=8644&ArtistId=943

 "John Byrne - from an idea by Roger Stern with apologies to Don Martin"

Used for the cover of Comic Reader #143:

Power Man & Iron Fist sketch by Gammill and Layton

Grabbed from http://www.boblayton.com/Art%20Gallery/artgallery_page7.htm

Pencilled by Kerry Gammill and inked by Bob Layton.

1981 - Power Man and Iron Fist by Kerry Gammill

http://www.comicartfans.com/GalleryPiece.asp?Piece=320891&GSub=50018

Assuming that "Jo" is Jo Duffy, the writer of Power Man and Iron Fist, and "The Guys" are Kerry Gammill and possibly Ricardo Villamonte?

1984 - Power Man & Iron Fist house ads by Bill Sienkiewicz