Mark Twain
"The most impressive contribution to books by Mark Twain since The Mysterious Stranger of 1916...The attitude is that of Swift, the intellectual contempt is that of Voltaire, and the imagination is that of one of the great masters of American writing."—New York Times Book Review
Virtually none of the material in Letters from the Earth was published in Twain's lifetime and the manuscript was only approved by his executors
...10) Roughing it
15) Tom Sawyer
16) The gilded age
The only book that Mark Twain ever wrote in collaboration with another author, The Gilded Age is a novel that viciously and hilariously satirizes the greed, materialism, and corruption that characterized much of upper-class America in the nineteenth century. The title term—inspired by a line in Shakespeare's King John—has become synonymous with the excess of the era.