Downward to the Earth by Robert Silverberg
Selected for inclusion in Science Fiction: 100 Best Novels, this book by Robert Silverberg is an evocation of an alien civilisation more spiritually developed than ours. Other recent novels by this author include To the Land of the Living and The Queen of Springtime, and a major collaboration with Isaac Asimov, Nightfall, will appear later in 1990. Recent VGSF editions of Silverberg include Dying Inside(a VGSF classic) and The Conglomeroid Cocktail Party.