Babel-17

by Samuel R. Delany

Published 1 December 1975
In the far future, after human civilization has spread through the galaxy, communications begin to arrive in an apparently alien language. They appear to threaten invasion, but in order to counter the threat, the messages must first be understood.

Nova

by Samuel R. Delany

Published May 1969
The balance of galactic power in the 31st century revolves around Illyrion, the most precious energy source in the universe. The varied and exotic crew who sign up with Captain Lorq van Ray know their mission is dangerous, and they soon learn that they are involved in a deadly race with the charismatic but vicious leader of an opposing space federation. But they have no idea of Lorq's secret obsession: to gather Illyrion at source by flying through the very heart of an imploding star.

Dhalgren

by Samuel R. Delany

Published 1 January 1975
In Dhalgren," " perhaps one of the most profound and bestselling science fiction novels of all time, Samuel R. Delany has produced a novel "to stand with the best American fiction of the 1970s" (Jonathan Lethem).
Bellona is a city at the dead center of the United States. Something has happened there.... The population has fled. Madmen and criminals wander the streets. Strange portents appear in the cloud-covered sky. And into this disaster zone comes a young man-poet, lover, and adventurer-known only as the Kid. Tackling questions of race, gender, and sexuality, Dhalgren is a literary marvel and groundbreaking work of American magical realism.