• First citation-based dictionary of science fiction terms
• The first historical dictionary devoted entirely to science fiction, illustrating the significant effect that the language of science fiction has had on the English language as a whole
• Each entry includes both definitions and extensive historical citations of the word's usage
• The New England Science Fiction Association has provided editorial oversight through an advisory board
• Contents include more than 3,000 terms, short notes about groups of related terms, a bibliography, and an introduction by Gene Wolfe, author of The Book of the New Sun

"This is an indispensable work that is certain to delight fans of the genre." - The Guardian

"A mini-history of SF and its subculture that will fascinate anyone curious about the evolution of the language." - Lisa Tuttle, The Times (Books)