Farewell to Yesterday’s Tomorrow - Alexei Panshin - 1976 Paperback Edition

Condition: Acceptable. Please see the images for more details. Blurb: “Collection of short works by this American science fiction writer and critic. Introduction by the author, plus the stories:  What's Your Excuse? (1969)The Sons of Prometheus (1966)The Destiny of Milton Gomrath (1967)A Sense of Direction (1969)How Georges Duchamps Discovered a Plot to Take Over the World (1971)One Sunday in Neptune (1969)Now I'm Watching Roger (1972)Arpad (1971)How Can We Sink When We Can Fly? (1971)Sky Blue (1972) (w/Cory Panshin)When the Vertical World Becomes Horizontal (1974)Farewell to Yesterday's Tomorrow (1975, essay)”