The Joker's Asylum is a series of five one-shot comic books, all published by DC Comics in September, 2008. It's official name is Batman: The Joker's Asylum and it is set in the New Earth universe of the DC continuity with each issue featuring different villains for Batman to confront, namely: The Joker, The Penguin, Poison Ivy, Scarecrow and Two-Face. In all issues the Joker is an inmate at the Arkham Asylum for the criminally insane and he introduces the stories and acts as the narrator; hence, the title of the series. Each issue in the series has a different set of writers and artists bringing their own styles and sensibilities to the story under editor Mike Marts, with Rob Leigh lettering all five issues. Although the series seems to have no particular chronological sequence, the DC Comics database lists the sequence of issues, which i followed. My favorite and the best i think is... well, don't let me make up your mind for you.