Rose, M. Introduction.--Backgrounds: Amis, K. Starting points. Conquest, R. Science fiction and literature. Scholes, R. The roots of science fiction.--Theory: Suvin, D. On the poetics of the science fiction genre. Lem, S. The time-travel story and related matters of SF structuring. Rabkin, E. S. Genre criticism: science fiction and the fantastic.--Approaches: Lewis, C. S. On science fiction. Sontag, S. The imagination of disaster. Holquist, M. How to play utopia. Ketterer, D. The apocalyptic imagination, science fiction, and American literature. Huntington, J. Science fiction and the future.