Her name is Dr. Harleen Quinzel—better known to her friends and enemies as Harley Quinn. Her very-very-ex-boyfriend the Joker may be the Clown Prince of Crime, but Harley’s the Queen of Coney Island! So when the zombie apocalypse threatens her li’l seaside stretch of paradise, who else would ya call to give the undead a blow to the head?

In Gotham City, heinous acts of violence occur daily. Harley Quinn, forensic psychiatrist and profiler, consults with the Gotham City Police Department on its worst cases. But one unsolved murder still haunts her-the night Harley discovered her roommate’s body marked with the signature of a notorious serial killer known as The Joker. Five years later, the case remains unsolved, as a new series of horrific killings begins. When the murders escalate and the meticulously constructed crime scenes become more elaborate, Harley’s obsession with finding the depraved psychopath responsible leads her down a dangerous path. The past and the present finally collide, and Harley must decide how far she is willing to go-and how many lines she is willing to cross-to solve these cases once and for all. Written by #1 New York Times and international bestselling author Kami Garcia (Beautiful Creatures, Unbreakable, The X-Files Origins: Agent of Chaos) and drawn by Mico Suayan (Bloodshot Reborn), Jason Badower (Wonder Woman ’77), and Mike Mayhew (The Star Wars), Joker/Harley: Criminal Sanity introduces readers to a Joker and Harley Quinn unlike any they’ve seen before, utilizing forensic psychiatry, behavior analysis, and psychological profiles to create a true-to-life take on these iconic characters that is more terrifying than any psychotic fantasy. Collects Joker/Harley: Criminal Sanity #1-8 and the one-shot Joker/Harley: Criminal Sanity-Secret Files.

It's been months since Dr. Harleen Quinzel began interviewing criminals at Arkham Asylum, and she's having strange dreams about one of them in particular: The Joker. What starts off as nightmares will soon evolve into fantasies. Despite warnings from the Dark Knight himself, she's utterly fascinated by this man who seems the perfect expression of her theory; who says all the things she needs to hear; who seems to know her better than she knows herself. Harleen is a bold new reimagining of the origin of one of DC's most beloved characters, as envisioned by writer/artist Stjepan Sejic. Collects Harleen #1-3.

Psychotic, Mass-murdering clowns and the women who love them. Written and drawn by the masterminds behind the critically acclaimed "Batman: The Animated Series," Paul Dini and Bruce Timm, this story reveals the origins of Harley Quinn as she proves her love to the Joker by trying to eliminate the Dark Knight on her own! THE BATMAN ADVENTURES: MAD LOVE DELUXE EDITION also features a behind the scenes look at the layouts and color guides by Timm, as well as an introduction by Dini.

"HARLEY LOVES JOKER" flashback tale that ran as a backup in HARLEY QUINN last year! As far as The Joker's concerned, the new headquarters Harley built for them is absolutely perfect...but only she knows the whole place is rigged to come crashing down around them—and she doesn't know how to stop it!

Get ready for this summer's most anticipated movie SUICIDE SQUAD with the comics that inspired the film, including fan-favorite character Harley Quinn! Love makes you do crazy things. And Suicide Squad member Harley Quinn is madly in love. After springing her psychotic killer boyfriend, the Joker, from Arkham Asylum, former psychiatrist Harleen Quinzel put on a clown costume and said sayonara to sanity. Now Harley brings her own unique brand of psychosis and revelry to whatever she does, whether it's causing mayhem alongside her beloved Mistah J., saving the world as the nuttiest member of the Suicide Squad, or relaxing with her gal pals Poison Ivy and Catwoman. With her deranged mix of fear and fun, she knows how to leave a crowd in stiches! HARLEY QUINN'S GREATEST HITS collects eight of the lovesick lunatic's best stories from such talented writers and artists as Paul Dini, Bruce Timm, Jim Lee, Jeph Loeb, Amanda Conner, Jimmy Palmiotti, Scott Snyder and more. Collects BATMAN ADVENTURES #12, BATMAN #613, COUNTDOWN #10, GOTHAM CITY SIRENS #7, SUICIDE SQUAD #1, BATMAN #13, HARLEY QUINN #21 and HARLEY QUINN AND SUICIDE SQUAD APRIL FOOL'S SPECIAL #1.

CRIME'S GREATEST COUPLE, TOGETHER AGAIN! It's the earliest days of the romance between antiheroine Harley Quinn and the superbly psychotic super-villain The Joker—but there's already trouble in paradise. When Harley accidentally reveals the location of Mr. J's secret headquarters, all H-E-double-hockey-sticks breaks loose…and the only thing worse than having Batman hot on their trail is the wrath of The Joker himself! Can Harley soothe the savage beast? Can The Joker chill out for once in his miserable life? Can the Dark Knight lighten up? Can one woman with a gigantic hammer change the face of comics forever? Travel back to the roots of the DC Universe's wildest love story in Harley Loves Joker, from writers Paul Dini (Batman: The Animated Series) and Jimmy Palmiotti (Harley Quinn) with artist Bret Blevins (Harley Quinn)!

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.

From her animated adventures to her bloody stint in the Suicide Squad, HARLEY QUINN: A CELEBRATION OF 25 YEARS captures the greatest comic book moments of the Joker's main moll, brought to life by industry legends Paul Dini, Bruce Timm, Jim Lee, Jeph Loeb, Amanda Conner, Jimmy Palmiotti, Karl Kesel, Terry Dodson and more! The true embodiment of the phrase "madly in love," Harley Quinn may be stark, raving, cuckoo-pants crazy, but she is a woman who stands by her man. Filled with an inexplicable devotion to Batman's nemesis, the Joker, she's the Clown Prince of Crime's most loyal companion. But while her monstrous "Mistah J" may have led her to a life of crime, he also brought her comic book superstardom! It's been 25 years since she made her debut, but Harley Quinn's popularity continues to grow, spreading from animation to comic books to video games to live-action feature films, with no sign of slowing down. Collects BATMAN ADVENTURES ANNUAL #1; BATMAN ADVENTURES HOLIDAY SPECIAL #1; BATGIRL ADVENTURES #1; BATMAN ADVENTURES #3; BATMAN ADVENTURES #16; BATMAN/HARLEY QUINN #1; HARLEY QUINN #1, #25; HARLEY AND IVY: LOVE ON THE LAM; BATMAN #613; JOKER'S ASYLUM II: HARLEY QUINN #1; SUICIDE SQUAD (vol. 3) #6-7; HARLEY QUINN (vol. 2) #2; HARLEY'S LITTLE BACK BOOK #1; and SUICIDE SQUAD (vol. 4) #4.