Invincible follows the adventures Mark Grayson, the son of Omni-Man, an extraterrestrial superhero of the Viltrumite race. Invincible inherits his father's super powers and uses them to protect the Earth. As a teenager, he has trouble adjusting to his newfound powers and coping with the reality of his origins.

The series was created by writer Robert Kirkman (Walking Dead) and artist Cory Walker with Ryan Ottley taking over art duties with issue #8. The book is notorious for being graphically violent despite its colourful nature and visuals.

Also included are Invincible appearances in other Image Comics as well as other Image Comics series that are linked to the series. Although not essential they expand the universe that Robert, Cory and Ryan created.

I've included two reading orders to choose from