"It's the sensational debut of a massive team-up series in which Harley meets (and almost certainly annoys) the greatest heroes and villains of the DC Universe! Harley is pairing up with the greatest heroes of all time, featuring adventures with Wonder Woman, Green Lantern, and more! But can she keep up with superheroes of this caliber? Celebrated Harley co-writers Amanda Conner and Jimmy Palmiotti take on this monumental series, spinning off of the...

Harleen Quinzel is many things, a gymnast, anxious, broke... but the last thing anyone would call her is evil. Harley Quinn on the other hand... When Harleen signs up to participate in a clinical research trial with her girlfriend, Pamela, the most she can hope for is extra cash in her wallet and a chance to get her anxiety under control. But what she gets instead are increasingly larger gaps in her memory and stolen mementos from some guy named Jack...

"Nothing's worse than spending the holidays with your uninvited, unannounced family-just ask Harley. Her brothers won't stop fighting, her dad wants peace and quiet, and her mom just wants everyone to get along. Dysfunctional family dynamic masks a major secret that the whole Quinn family is keeping from Harley. Will the big reveal mean an even bigger family blowout, or can Harley's clan end their squabbling and remember the true meaning of the season?...

"Has Harley ever been able to catch a break?! As if playing detective for my own murder ain't bad enough, now I'm also on janitorial and princess-babysitter duty?! I just can't."-- Provided by publisher.

"After liberating New York City from her now-feral Gang of Harleys, poor Harley wants nothing more than to slip back into retirement in her coastal (and heavily guarded) paradise. But the Laughing Boys Gang has another idea--they'll follow her to the ends of the Earth, to drag her back to their leader! If you think that's a big problem, just wait. The Joker couldn't possibly still be alive, could he? After all ... Harley killed him with her bare hands!...

"Set in Harley's earliest days with the Joker, the DC Universe's most mischievious anti-hero makes the biggest mistake of her burgeoning criminal career...accidentally revealing the location of Mistah J's hideout! She tries to make it up to her puddin' after her colossal blunder--but the Joker's wrath is not easily soothed! And how will the Dark Knight make matters even more complicated? Paul Dini returns to his roots with an all-new take on the romance...

"A new day dawns in Gotham, and the horrors of "The Joker War" are just being realized. A bold new direction for Batman begins as Bruce Wayne's circumstances are forever changed. How did The Joker's rampage affect the citizens of the city? Bruce Wayne and the city he loves have changed dramatically following the events of "The Joker War," but Batman and his mission are eternal. The mysterious vigilante known as Ghost-Maker has known Bruce since they...

"Harley Quinn and Poison Ivy, breaking the law is never more fun than when your best friend's beside you! The duo's latest scheme will take them from the streets of Gotham to the jungles of South America to the bright lights of Hollywood!"-- Provided by publisher.

"This is it: the Clown Prince of Crime battles the Dark Knight Detective head-to-head for the last time. And one way or another, this will be the final chapter of their agelong conflict. The Clown Prince of Crime and the Dark Knight Detective go head-to-head for the last time. The Joker has never wanted to win before, he's never wanted his battle with Batman to end, but now his motivation has shifted. As The Joker's plan to assemble an army materializes,...