In this second HARLEY QUINN collection, Harley gets fed up with crime and decides to switch sides — much to the chagrin of Batman and company. Then, with her gang threatening to mutiny, Harley must whip them into shape while battling Killer Croc. Collects HARLEY QUINN #8-13 and HARLEY QUINN: OUR WORLDS AT WAR #1.

Having played out every trick on the fine citizens of Gotham City, Harley Quinn--the Joker's former girlfriend--decides that another city deserves her attention. After all, why menace one city when you can menace two? Especially if the second has a Man of Steel guarding it. Harley hightails it to Metropolis, with allies Poison Ivy and Bizarro in tow. Writer Karl Kesel and artist Terry Dodson continue their now classic run on this beloved title in HARLEY QUINN: WELCOME TO METROPOLIS, collecting issues #14-25.

In a new direction for the series, Harley attempts to juggle being a full-time psychiatrist with her own criminal activities. But the unbalanced people she has to treat are keeping her very busy-and she's wanted for the murder of a police officer. Then, Harley gains powers beyond those of normal humans thanks to Poison Ivy's experiments. But every gift has its price, and now Harley faces the consequences. Plus, Harley signs on for a mercenary gig to hunt down a guy on the lam and retrieve an unnamed object of limitless value for him. Collects HARLEY QUINN #26-38.

The Joker's lovable partner in crime takes the spotlight in this new hardcover volume collecting HARLEY QUINN #1-7, written by Karl Kesel (SUPERMAN: THE MAN OF STEEL) with art by the fan-favorite team of Terry Dodson and Rachel Dodson (WONDER WOMAN)! Don't miss these beautifully illustrated tales of lunacy!

"Harley Quinn created by Paul Dini & Bruce Timm; Wonder Woman created by William Moulton Marston; Zatanna created by Gardner Fox and Murphy Anderson; Lobo created by Keith Giffen and Roger Slifer; Superman created by Jerry Siegel and Joe Shuster by special arrangement with the Jerry Siegel family"

From Emmy and Eisner Award-winning Paul Dini (DETECTIVE COMICS, Batman: The Animated Series) comes GOTHAM CITY SIRENS BOOK ONE! Catwoman, Poison Ivy, and Harley Quinn-they’re beautiful, they’re deadly, and for the first time in their lives, all three are trying to fly on the straight and narrow. Tired of playing by other people's rules, regardless of which side of the law they're on, these tough ladies have a new agenda that's all their own, and they'll use any means necessary to pursue it. Only, sometimes, friends can be more trouble than they're worth. Particularly when they're unaccustomed to things like loyalty…or sanity. With the Bat away, these sirens will play, and no one- not Hush, the Riddler, or even the Joker-knows what to expect from the bad girls of Gotham City. But life off the lam is no bed of roses. Especially when maniacs are killing innocents and making it look like the Sirens are the culprits, when Ivy’s new civilian identity proves murderously difficult to maintain, and when Catwoman’s sister comes to town to ride of the demon she believes possesses her… and rid her of her life in the process! Featuring the gorgeous artwork of Guillem March (BATMAN), Andres Guinaldo (NIGHTWING), and more, Batman’s hottest rogues tread a new path by the along with writers Paul Dini, Tony Bedard (SUPERGIRL), Scott Lodbell (TEEN TITANS), and Marc Andreyko (BATWOMAN) in GOTHAM CITY SIRENS BOOK ONE. Collects issues #1-13.

The definitive story of Harley Quinn by her co-creator, Paul Dini, and Pat Cadigan, revealing the secrets of her history even as she seeks to kill Batman. When she was only seven years old, Harleen Quinzel witnessed her father being beaten up by thugs, and then arrested by the police. That night she ran away to the safest place she could think of: Coney Island amusement park. But there, pursued into the Funhouse by the men who brutalised her father, she beheld unimaginable horrors. Years later, Harleen has put her past behind her, and used her intelligence and ambition to escape her childhood of poverty with a career in psychiatry. Assigned to her first position at Arkham Hospital, she will discover, deep in the asylum, something dangerous and alluring, something quite unlike anything else she has ever known before: The Joker. Because why would you settle for love, when you could have MAD LOVE? From the moment that Harleen finds a rose on her desk, to the moment she dons her harlequin hat, this is the definitive story that chronicles the obsession, the burning desire, the manic laughter, and the birth of one of the most controversial and popular comic book supervillains ever created: Harley Quinn. Copyright © 2017 DC Comics. BATMAN, THE JOKER, HARLEY QUINN, SUICIDE SQUAD and all related characters and elements © & TM DC Comics and Warner Bros. Entertainment Inc.