Menzel's night-sky guide in the Peterson series, with Ching Sung Yu's sky maps — forty-eight of them, designed to be matched against what is actually overhead rather than admired on the page. The unabridged paperback edition.
Well used, which is the correct state for a field guide: blue covers rubbed with paint loss along the spine folds and edges, scattered scuffs across the back, corners bumped and creased.
