K'Ratak was a Klingon author.
K'Ratak was the author of The Dream of the Fire. (TNG episode: "The Measure of a Man")
K'Ratak was once challenged to a duel by a reader who disliked his work. (ST - IKS Gorkon novel: Honor Bound)
In 2377, Ardon Broht compared the USS Voyager's EMH to K'Ratak and Leo Tolstoy after reading Photons Be Free. (VOY episode: "Author, Author")