What would the literature of the main civilizations of Galactic Civilizations look like?

Literature is an important part of most of human cultures and, since most of the aliens in Galactic Civilizations are not that different from humans, it is fair to assume these aliens would have literature as well. So, what would this literature look like? What kind of fiction would be popular in these civilizations? What kind of literature would Drengin, Altarians, Arceans, Torians, Drath, Iconians, Korath, Krynn or Irydium write? And what kind of literature would their citizens like to read?