A wonderful compilation of essays edited by James Gunn and Matthew Candelaria. Some are out of print or hard to find canonical articles, such as 2 chapters from Darko Suvin's _Metamorphoses of Science Fiction_, other from Robert Scholes' _Structural Fabulation_, Alexei and Cory Panshin's «Science Fiction and the Dimension of Myth», or even David Ketterer's «The Apocalyptic Imagination...». Others are more recent or even written for the occasion, as is the case of Gary K. Wolfe's «Coming to Terms», on the almost impossible task to define the genre.
It is a wide ranging and impartial collection (it is very hard to find Suvin and the Panshins side by side on other compilations), which is a must if you have a theoretical interest on this literary genre (particularly teachers on any level), but also recommended for everyone who just reads SF for pleasure and wants to know a little more on its history and significance.
Will The Scarecrow Press and the editors be willing to have it on mass market paperback, thus reaching a wider audience?