The book is a classic examination of space travel and the nature of the universe in the form of lectures delivered by the author.

Hardcover. Condition: Good. Dust Jacket Condition: Fair. Wear to edges and corners of dust jacket, edges and corners a little creased and worn, a few small nicks and rips, top of spine chipped and worn, rip at top of spine join with a cover hole on edge of spine, some light wear to covers and spine, top and bottom of spine a little bumped, small rip in the surface of spine corresponding with a small piece missing on the dustjacket, internally in good condition, pages crisp and clear.

121 pages