The 1990 Annual World's Best SF

For the past twenty-five years, Donald A. Wolheim, the dean of science fiction editors, has been scouring the short fiction marketplaces, in search for exciting new talents in the field as well as stories of outstanding quality by the finest established authors. And for twenty-five years, he has published these masterpieces in an ANNUAL WORLD'S BEST collection which has gained international recognition as the series that has consistently pinpointed works which became award winners and the stories which marked the beginning of future science fiction trends. And 1990 more than lives up to this tradition with a stellar collection of stories that take us to such times and places as: twenty-first century America, where Abraham Lincoln is about to discover how one decision can alter the course of the future; to Central America with two newsmen who stumble upon the scoop of their careers in an isolated backwater where war has been sparked by forbidden biological experimentation; to a modern-day lab where a scientist has discovered a means of communicating with those living in the past! - but is it our past or some other Earth's?