Warm Worlds and Otherwise

Warm Worlds and Otherwise is a short story collection by American writer Alice Sheldon, first published in 1975 under her pen name James Tiptree Jr. In its introduction, "Who is Tiptree, What is He?", fellow science fiction author Robert Silverberg wrote that he found the theory that Tiptree was female "absurd", and that the author of these stories could only be a man. After Sheldon wrote him that Tiptree was a pseudonym she assumed, Silverberg added a postscript to his introduction in the second edition of the book, published in 1979.