Τζακ Βανς

The Languages of Pao is a science fiction novel by Jack Vance, first published in 1958, in which the Sapir–Whorf hypothesis is a central theme. A shorter version was published in Satellite Science Fiction in late 1957. After the Avalon Books hardcover appeared the next year, it was reprinted in paperback by Ace Books …

The Man in the Cage is a book by Jack Vance.