Marcia Clark is a bestselling author and a criminal lawyer who began her career in law as a criminal defense attorney and went on to become a prosecutor in the L.A. District Attorney's Office in 1981. She spent ten years in the Special Trials Unit, where she handled a number of high profile cases, including the prosecution of stalker/murderer Robert Bardo, whose conviction for the murder of actress Rebecca Schaeffer resulted in legislation that offered victims better protection from stalkers as well as increased punishment for the offenders. She was lead prosecutor for the O.J. Simpson murder trial.
In May of 1997 her book on the Simpson case, Without a Doubt, was published and became a #1 bestseller on the New York Times, Wall Street Journal, Washington Post, Los Angeles Times, and Publishers Weekly bestsellers lists. In February 2016, Clark re-released the book with a new Foreword.
Clark's new crime fiction series centering on criminal defense attorney, Samantha Brinkman, debuted in May 2016 with the publication of Blood Defense, a #1 Amazon bestseller. The second book in the series, Moral Defense, published in November 2016. She is also the author of four bestselling legal thrillers featuring prosecutor Rachel Knight, which includes The Competition, Killer Ambition, Guilt by Degrees, and Guilt by Association. TNT optioned the books for a one hour drama series and shot the pilot, which starred Julia Stiles as Rachel Knight.
Marcia Clark has appeared on the Dateline NBC, NBC Nightly News, Ellen, Today, The View, The Early Show, Good Morning America, and Entertainment Tonight, among others and has been featured in the Los Angeles Times, People, Vulture, Vogue.com, Elle.com, and many other media outlets in the United States and around the world. She gives lectures across the country on a variety of topics, including how celebrity and media attention continue to impact criminal cases, the gender bias of the media and the workplace, and the ways in which those attitudes are changing among the millennials.