Jack Cooper is a guest character in the third season of the NBC sitcom Parks and Recreation. He works at the Controller's Office at the Pawnee Public Library.
He approaches Ron Swanson in "Ron & Tammy: Part 2" to tell him that he has an overdue library book entitled It's Not the Size of the Boat: Embracing Life with a Micro-Penis. Right away, Ron knows it's the work of his ex-wife Tammy 2.