Harleen Quinzel (New Earth), DC Database

Dr. Harleen Quinzel, better known as Harley Quinn, is the former (and brief) girlfriend of the Joker. Since then, she's worked alone or with her friends Poison Ivy and Catwoman. Described as having a genius-level IQ, Harleen attended Gotham State University on a scholarship for gymnastics, where she majored in Psychiatry under Dr Odin Markus. To get into the graduate program, she had Dr. Markus meet with her in her dorm room, where she outlined what she believed would be a good graduate thesis

DC's December 2023 solicitations

Harleen Quinzel as Harley Quinn (Earth-49) - DC Comics

Harleen Quinzel as Batgirl (Earth-0) - DC Comics

DC Comics: The New 52, Hardcover Collection, 1216 pages 9781401234515

Harleen Quinzel as Harley Quinn (Earth 8) - DC Comics

Harleen Quinzel, Earth-27 Wiki

Harley Quinn Reading Order

DC COMICS HARLEY QUINN NEW 52 ver. BISHOUJO - Kotous Store

How 'Harleen' Lays Groundwork for an R-Rated Harley Quinn Movie – The Hollywood Reporter

How many Harley Quinns have there been, anyway?

Harleen Quinzel (New Earth)/Gallery, DC Database

DC COMICS HARLEY QUINN NEW 52 ver. BISHOUJO - Kotous Store

How many Harley Quinns have there been, anyway?

Earth-Three - Wikipedia