4 books in series

The Invincible Iron Man (1968)

The Invincible Iron Man (1968) is a 4-book series with 4 released primary works first released in 1968 with contributions by Dennis O'Neil, Tom Taylor, Bob Harras, Len Kaminski, and Mark Gruenwald.

Marvel Masterworks: The Invincible Iron Man, Vol. 4
Essential Daredevil, Vol. 3
Captain Marvel: The Complete Collection
Decades: Marvel in the '80s - Awesome Evolutions
Superior Iron Man, Volume 2: Stark Contrast
Captain America: The Captain
Avengers: Galactic Storm, Vol. 1
Avengers: Galactic Storm, Vol. 2