The Invisible Writing: An Autobiography Arthur Koestler
1956. Reprinted. 431 pages. Illustrated paper cover with lettering. Contains black and white illustrations. Clean pages and illustrations with light tanning and mild foxing throughout. Thumb-marking present. Binding remains firm. Paper covers have moderate edge-wear with slight rubbing to surfaces and curling to corners. Lettering is darkened. Minor scuffing to edges and corners. Visible wear marks to covers.