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.

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.

When a violent and highly illegal energy drink-sponsored hunting operation threatens the lives of wildlife and the residents of Gotham City alike, the only ones fit to save the day are the criminal trio of Catwoman, Poison Ivy, and Harley Quinn. Back together again for the first time in years. Sometimes the only way to fight bad is with even worse! With special appearances by White Rabbit, Punchline, and introducing the himbo cowboy henchmen sensation soon to be sweeping the nation known as the the Nasty Boys!Get your chaps, spurs, and hats out cause it's hunting season!Brought to you by the talents of Leah Williams (Power Girl, X-Factor), Matteo Lolli (Deadpool, Harley Quinn), Daniel Hillyard (The Ride, Plush), and more, Gotham City Sirens: Trigger Happy collects the entire mini-series in one guts, goo, and grit-filled collection!

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.

"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!

The creative team that transformed Harley Quinn forever returns to shake up her world once more-and this time, the gloves are off! Harley Quinn has avoided Gotham City ever since she broke up with The Joker and found a home in Coney Island. But when she gets an offer she can't refuse, she has no choice but to slip back into the city as quietly as she can, hoping to be gone before anyone-especially her ex-learns she's been there. But for Harley, "as quietly as she can" is plenty loud...and before she can say "Holee bounty hunters, Batman," The Joker's sicced every super-villain in the city on her pretty ombré head-and the only team tough enough (or crazy enough) to come to her defense is the Birds of Prey…if they can put up with her. Collects Harley Quinn & the Birds of Prey #1-4.

Harley and The Joker make it legal at last! Follow the happy couple to their secret honeymoon spot, where it's literally till death do them part!

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.