Hartwell, David G. Editor. Year's Best SF: 4. New York: Harper, 6/1999. 480pp.

Another strong volume from Hartwell, concentrating on good-old-fashioned SF, mostly of the hard variety. Hartwell's traditional definition of the genre is very welcome these days and complements Dozois's more expansive definition in his year's best volume (hopefully reviewed next time). No recommendation other than “must buy today” is really needed.