New York: Grosset & Dunlap, 1953. NF / NF. 1956B-5, Format #11, per Carpentieri. Number 33 in the series. Only two titles proceed this on the front flap list. Brown tweed boards. Illustrated orange endpapers. Tom Corbett, Space Cadet list on the rear panel. A very clean, bright and pleasing copy. A very clean, bright and attractive copy.