Squirrel Girl isn't a new hero, she's been around since the early 90s actually but she's being brought back in a new four issues run written by Ryan North (you know, the guy who made the Adventure Time graphic novel?!?!) and drawn by Erica Henderson.
Even though she's appeared in things off and on for years, this will be her FIRST solo comic and will focus on developing her story as she moves into the world of being a grown up. The setting for the story has Doreen leaving her nanny job and setting off for adventures at college, and battling bad guys of course! c:
The pictures I added are an issue cover by Erica Henderson, a variation by Art Adams, and her classic character design.