David Hartwell"s guiding principle for his annual science fiction anthologies is that the stories be clearly science fiction--not fantasy, horror, or postmodern. As always, for the 2001 edition he has chosen stories representing the best of the SF field, along with several short pieces published in Nature magazine as part of a millennium celebration. Don"t miss Tananarive Due"s "Patient Zero," which assumes Greg Egan"s frequent spotlight on medical SF (this year Egan covers philosophy vs. science in his alternate history "Oracle"); Stephen Dedman"s detective story about amputation, "The Devotee"; Stephen Baxter"s hard SF "Sheena 5," which is about an enhanced squid and her mission; Ursula K. LeGuin"s anthropological tale "The Birthday of the World"; or Nancy Kress"s succinct, pithy "To Cuddle Amy." 2001 Hugo Award nominees include "Seventy-Two Letters" by Ted Chiang, "Oracle" by Greg Egan, and short story winner "Different Kinds of Darkness" by David Langford. --Bonnie Bouman