She-Hulk #20

She-Hulk's wide-eyed, slack-jawed expression says it all as she holds up a comic book called Stu the Human — a fictional "Mallard Comics Group" title whose cover depicts an anxious blond human surrounded by anthropomorphic ducks crying "Waugh!" It's a wonderfully meta 2007 moment that plays with comics-within-comics in the way this series does so well. Cover art by Emily Watson captures Jennifer Walters mid-shock with expressive charm, making this issue irresistible to pick up.