"The Last Black Unicorn" is a memoir written by Tiffany Haddish and published in 2017. The book is a collection of personal stories, reflections and essays that cover her life from childhood to her rise to fame as a comedian and actress. It provides a glimpse into her upbringing in South Central Los Angeles and her struggles with poverty, abuse and growing up in a volatile household. Haddish also talks about her journey to becoming a successful comedian and actress, including her early days performing stand-up comedy and her breakout role in the hit comedy film "Girls Trip." The book also features her comedic and witty writing style, which is a hallmark of her stand-up comedy performances and interviews. The book was a New York Times bestseller and was well-received by critics.