The real name of Mark Twain, the author of "The adventures of Huckleberry Fin", is Samuel Clemmens.

The real name of George Orwell, the author of "Nineteen Eighty-Four", is Eric Blair.

The real name of Lewis Carroll, the author of "Alice's Adventures in Wonderland", is Charles Dodson.

The real name of Dr. Seuss, the author of "The Cat in the Hat", is Theodor Geisel.