First UK Edition, First Printing. Octavo. 224pp. A true first UK edition in an original price clipped jacket. A Good copy with clean unmarked pages, faint moisture stain to rear board and inside of board, the jacket is bright and not faded some strengthening to the top and base of the spine, rubbing to the extremities of the jacket. A very solid, better than good example of a scarce Asimov highlight. Typed letter signed by Isaac Asmiov laid in loosely, the book itself is not signed.