Klingon - English Dictionary
The Klingon language is an artificial language used by the Klingons in the Star Trek universe. It was first introduced in the 1979 Star Trek: The Motion Picture.
The Klingon Dictionary is a book by Marc Okrand describing the Klingon language. First published in 1985 and then again with an addendum in 1992, it includes pronunciation, grammar and vocabulary. It has sold more than three hundred thousand copies and has been translated into five languages.