Samuel R. Delany's The Jewel-Hinged Jaw appeared originally in 1977, and is now long out of print and hard to find. The impact of its demonstration that science fiction was a special language, rather than just gadgets and green-skinned aliens, began reverberations still felt in science fiction criticism. This edition includes two new essays, one written at the time and one written about those times, as well as an introduction by writer and teacher Matthew Cheney, placing Delany's work in historical context. Close textual analyses of Thomas M. Disch, Ursula K. Le Guin, Roger Zelazny, and Joanna Russ read as brilliantly today as when they first appeared. Essays such as "About 5,750 Words" and "To Read The Dispossessed" first made the book a classic; they assure it will remain one.