Mickey Haller is a fictional character created by author Michael Connelly. He is a defense attorney who operates primarily in Los Angeles, often working out of his car, which he refers to as the "Lincoln Lawyer." Haller is known for his unconventional methods and his ability to navigate the complexities of the legal system. Haller appears in several novels, including "The Lincoln Lawyer," where he takes on various cases that challenge his moral compass. His character is often portrayed as both charismatic and flawed, reflecting the struggles of a legal professional in a high-stakes environment.