This is an old paperback edition published in 1979. It's a version with the original binding and cover design, different from recent printings. It has been stored with a cover since it was purchased, so there are no tears or noticeable stains. When viewed from the side, there is very slight discoloration and staining due to aging, but the text is clean, and there are no markings or underlining. It is in a condition suitable for reading. There are versions with slightly different cover designs (the expression of the stars in the background) depending on the year, but this item is the 1979 printing version. This is a recommended book for those who collect Heinlein works or old editions of Hayakawa Bunko SF. *Please understand that there is age-related deterioration appropriate for the publication year, as shown in the photos, before purchasing. Thank you for looking.