An anthology featuring more than twenty imaginative short stories explores the future of humankind, from its genetic evolution to technological and scientific advances, in works by Poul Anderson, Samuel R. Delany, Joanna Russ, Robert Silverberg, Roger Zelazny, and other masters of speculative fictio
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Used availability for Gardner Dozois's Supermen
January 2002 : USA Paperback
December 2007 : USA, Canada, UK Kindle edition