The Sleepwalkers A History of Man's Changing Vision of the Universe by Arthur Koestler
1959. First Edition. 624 pages. No dust jacket. This is an ex-Library book. Laminated jacket over boards. Library copy, with expected inserts and inscriptions. Clean pages with mild tanning and light foxing throughout. Tightly bound with faint thumb-marking throughout. Mild droplet staining to text block edges. Boards have light shelf-wear with corner bumping. Moderate tanning to spine, which has mild crushing and wear to ends. Book has forward lean. Boards are mildly warped.