The Invincible Iron Man Omnibus Vol. 4

Background. The late 1970s were a fertile period for Iron Man, as the character emerged from the Bronze Age with a more defined identity and a readership that had grown up with him. Bill Mantlo, a prolific Marvel writer known for his work on Rocket Raccoon and Micronauts, brought high-energy plotting and genuine ambition. Bob Layton's arrival as penciler and later inker would define the book's visual language for the next decade.

What's inside. This fourth omnibus collects Mantlo and Layton's collaborative work on Iron Man, including key armor upgrades, significant villain encounters, and the storylines that bridged the Silver/Bronze Age material toward the landmark Michelinie-Layton 'Demon in a Bottle' era. Essential connective tissue for the complete Iron Man story.

Why it's worth it. Layton's visual contribution to Iron Man cannot be overstated — his clean line work and meticulous mechanical detail established the aesthetic that most readers associate with the character. This omnibus captures him at the beginning of that defining run, before the character's most celebrated period. For completists, this is a required volume.

Edition details. Hardcover omnibus. US edition published by Marvel Comics. ISBN 9781302968281.