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.

Head over heels in her devotion to the Joker, Arkham psychiatrist Harleen Quinzel gave up her career (and her sanity) to transform herself into the ultimate companion for crime's clown prince - the mad moll Harley Quinn. Of course, Harley's romance with the Joker hasn't been easy. The two are at each other throats as often as in each other's arms, and that buzzkill Batman is always sticking his nose in just when things are starting to get fun. But what great love story is without the occasional incarceration and life-threatening peril? The Joker's main squeeze takes center stage in these stories from top creators Paul Dini, Yvel Guichet, Don Dramer, Joe Quinones, Neil Googe and more! Collects stories from: BATMAN: HARLEY QUINN #1, BATMAN: GOTHAM KNIGHTS #14, #30, DETECTIVE COMICS #831, #837, JOKER'S ASYLUM II: HARLEY QUINN #1, BATMAN: BLACK AND WHITE #1, #3, LEGENDS OF THE DARK KNIGHT 100-PAGE SUPER SPECTACULAR #1 and DETECTIVE COMICS #23.2.

Written and drawn by the masterminds behind the critically acclaimed 'Batman: The Animated Series,' Paul Dini and Bruce Timm, this Batman one-shot reveals the origins of Harley Quinn as she proves her love to the Joker by trying to eliminate the Dark Knight on her own!

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.

Collecting her first solo series by Karl Kesel and Terry Dodson, it's your favorite killer cutie you can't help but love, Harley Quinn, in Harley Quinn by Karl Kesel and Terry Dodson: The Deluxe Edition Book 2. This series reintroduces the original Batgirl. But how can that be possible when Barbara Gordon, the original Batgirl, is wheelchair-bound? She'd certainly like to know, and so would Nightwing, Robin and a certain new hero out there named Batgirl. Also guest-starring Nightwing as a...carjacker? What could lead him to such a dastardly deed? Why, Harley Quinn, of course! How will our hero, er, villain escape this one? Meanwhile, Oracle is determined to stop Harley once and for all, and she's not the only one. Littered with all your favorite Gotham characters and a surprise appearance from Superman, this Deluxe Edition will satisfy your Harley cravings. Collects Harley Quinn (2000s series) #9-19 and covers from #20-23.

Writer Paul Dini and artist Bruce Timm, the creative minds behind the critically acclaimed Batman: The Animated Series, follow up their Eisner-winning Batman: Mad Love with another tale featuring the loopy but loyal moll Harley Quinn, this time teaming up with her best gal pal, Poison Ivy! Collects stories from Batman: Harley and Ivy #1-3, Batman Adventures Annual #1, Batman Adventures Holiday Special #1, Batman and Robin Adventures #8, and Batgirl Adventures #1, plus stories from Batman: Gotham Knights #14 and Batman: Black & White #3.

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)!

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.