1957. First Edition. 328 pages. No dust jacket. This is an ex-Library book. Blue cloth with gilt lettering. Black and white photographic plates. Ex library copy from the London Planetarium, with expected inserts and inscriptions. Light tanning to otherwise clear pages and plates. More prominent foxing and tanning to text block edges, pastedowns and free endpapers. Pen inscription to front free endpaper. Some looseness to binding but pages remain attached. Boards have minor corner bumping and edgewear with mild tape staining, tanning and scuffing overall. Spine has heavier tanning with soft crushing to ends. Lettering remains bright and clear. Book has a slight forward lean.