Mark Twain drew heavily from his own childhood experiences growing up in Hannibal, Missouri for his two famous novels, The Adventures of Tom Sawyer and Adventures of Huckleberry Finn. The characters and their adventures were based on people and events from Twain's childhood. His third major work, Life on the Mississippi, depicted his real-life experiences working as a steamboat pilot on the Mississippi River before and after the Civil War. All three novels were shaped by Twain's childhood and provided fictionalized accounts of key people and formative experiences from his life.