The Question and Answer Book of Space by Ruth A. Sonneborn
1966. Reprinted. 61 pages. No dust jacket. Pictorial paper covered boards. Colour and black and white illustrations throughout by John Polgreen. Pages remain bright and clean with minimal tanning and foxing. Binding remains firm. Minor pencil inscriptions to front free endpaper. Boards have mild shelf wear with light rubbing and corner bumping. Some light marking and sunning. Boards are slightly bowed.