The books a generally in good condition. The pages are soft and well bound, and the spins are square. The books show many signs of wear from use and storage. Expect the covers to show scuffs and color loss. The spines show ring like stains which look like humidity issues. Some inside covers are lightly tanned. The pages are typically free from tanning or spotting. The edges of the leaves show heavy accumulation of dust at the top, and general signs of humidity along the edges. The These manuals are sturdy readers with unoffensuve cosmetic issues.