Graphic Novels for Adults

Humorous

Braddock, Paige. Jane's World.

Slice of Life

Leavit, Sarah. Tangles: A Story About Alzheimer's, My Mother and Me

Rabagliati, Michel. Paul books (series)
Books: Paul has a summer job
             Paul moves out
             Paul goes fishing
             Paul a Quebec (in French)

Melancholy/Thoughtful

Nifenegger, Audrey. The Night Bookmobile.
This is part of a "to-be-continued" series called The Library

Superhero

Gaiman, Neil. Whatever Happened to the Caped Crusader.