1964. Reprinted. 595 pages. No dust jacket. Orange cloth. Black and white diagrams and graphs throughout. Pages are lightly tanned, but text remains clear. Binding is firm. Boards have moderate shelf-wear, with noticeable corner bumping and some scuffing to edges. Spine is severely sunned, with noticeable crushing and slight splitting to ends. Visible black marks and moderate scuffing overall. Minor forwards lean.