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.

Harley and Ivy are on the road trip of the century! Following the wedding disaster of the decade, Harley Quinn and Poison Ivy end up on the run from Commissioner Gordon and the GCPD! But as fun as that all sounds, Ivy still worries about her actions after Kite Man left her at the altar…luckily, Harley’s got the perfect scheme to shake her out of her wedding day blues. A HarlIvy Moon! But when they come face-to-face with one obstacle after another-old lovers? trust issues? childhood trauma?-not to mention a bevy of villains with their own bones to pick, will this Thelma and Louise-style journey end in victory, or tragedy? This packs in the entire run of the GLAAD Media Award-nominated series. Collects Harley Quinn: The Animated Series: The Eat. Bang! Kill. Tour #1-6.20

Harley is set to begin her new life, but she needs a job first. Enter the Coney Island Roller Derby! It's game time as Harley sets out to destroy her competition—literally.

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.

It's hard out there for a freelancer! Looking to make some quick cash, Harley takes on odd jobs in her many wheelhouses—therapizing bad guys, tracking down stolen art from the Gotham Art Museum...but when it turns out the thief has his own mental baggage to unpack, Harley's got a real Thinkeron her hands!

When Harley discovers that Ivy is being held captive in Arkham Asylum, she decides to help her out-by breaking in!

When last we checked in with Harley Quinn, she ate, she banged, and she killed…but now it's time for something a little different. Fresh out of the events of Harley Quinn: The Animated Series season three, Harley has found herself a part of a highly unlikely team-the Bat-Family! Meanwhile, Poison Ivy has found herself prepping for her new job-leader of the Legion of Doom! But while Harley and Ivy adjust to their respective new roles, a ghost from Ivy’s past enters the fray and threatens the relationship between everyone's favorite clown and plant couple!

When a new hospital collapses into a sinkhole in the middle of Gotham City, Harley Quinn tries to convince Huntress and Black Canary to investigate. But can the Birds of Prey really trust the Clown Princess of Crime? Or do Harley's true allegiances lie elsewhere?

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.

If you thought you'd seen all the mayhem Harley was capable of unleashing with the help of an all-powerful genie and infinite wishes...well, we wish you'd known better!