Elizabeth Moon, like such diverse talents as Anderson, Dickson, and Niven, is equally a master of SF, as she proved with her bestselling collaborations with Anne McCaffrey, "Sassinak" and "Generation Warriors", her "Heris Serrano" series, and the highly-praised "Remnant Population". There's nothing inconstant about "this" Moon; a fact that shines forth brightly in all her "Phases". Some of the stories in this book were previously published in a much shorter volume entitled "Lunar Activity".