Jonathan Eig is an American journalist and biographer renowned for his compelling narratives and meticulous research. Eig has penned six books, with four becoming New York Times best sellers. His writing career commenced at the tender age of 16 when he started working for his hometown newspaper, The Rockland County Journal News. Eig went on to study journalism at Northwestern University and honed his skills as a reporter for prestigious outlets including The New Orleans Times-Picayune, The Dallas Morning News, Chicago Magazine, and The Wall Street Journal.

Eig's literary contributions extend to four children's books, and his works have found a global audience, being translated into more than a dozen languages. His most recent work, King: A Life (2023), has been praised as the definitive biography of Martin Luther King Jr. and was nominated for the National Book Award. His prior book, Ali: A Life, not only won the 2018 PEN America Literary Award but also earned a spot on Esquire magazine's list of the 25 greatest biographies of all time.

Eig's first book, Luckiest Man: The Life and Death of Lou Gehrig, garnered widespread acclaim, reaching No. 10 on the New York Times bestseller list and winning the Casey Award. His other notable works include Opening Day: The Story of Jackie Robinson's First Season, Get Capone, and The Birth of the Pill, which is slated for theatrical adaptation by TimeLine Theatre in Chicago.

Outside of writing, Eig served as a consulting producer for the PBS series "Muhammad Ali," directed by Ken Burns. He has made appearances on notable programs such as the Today Show, NPR's Fresh Air, and The Daily Show with Jon Stewart. His unique claim to fame, as noted by his parents, is his inclusion in a Jeopardy question, which was answered correctly for $200.

Eig resides in Chicago with his wife and children, where he writes in close proximity to the family's laundry machines, perhaps grounding his storied career in the reality of day-to-day life.