Invincible #17

Among the more charming covers in Image's 2004 superhero lineup, this issue of Invincible by Kirkman, Ottley, and Crabtree marks a milestone with a cover by Cory Walker that captures a sea of graduating hands thrusting mortarboards into a pale blue sky — one distinctly yellow-gloved fist among them hinting that not every graduate is entirely human. It's a deceptively simple image that balances the everyday joy of a high school ceremony against the quietly extraordinary life Mark Grayson leads.