Mark Twain, born Samuel Langhorne Clemens, was an American author and humorist who lived from 1835 to 1910. He is best known for his novels "The Adventures of Tom Sawyer" and "Adventures of Huckleberry Finn," both of which are set in the fictional town of St. Petersburg, Missouri, which was inspired by Twain's childhood home of Hannibal, Missouri.
Twain was known for his use of satire and humor, and his works often explored themes such as American culture, politics, and race relations. He was a strong advocate for civil rights and opposed racism and injustice.
In addition to his novels, Twain wrote a number of travel books, essays, and short stories. He was also a gifted speaker and lecturer, and traveled extensively throughout the United States and Europe to give speeches and lectures.
Twain was a lover of cigars and often enjoyed smoking them while writing. He was known for his witty and humorous comments about cigars, and once said, "If smoking is not allowed in heaven, I shall not go."