Book Conditions
Mottled cover - okay for fair condition
Light brown, mostly even - okay for fair condition.
Darker brown, uneven - do not send, in part because brown extends beyond cover onto regular page
Darker brown around the edges - do not send, in part because brown extends beyond cover onto regular page, and in part because binding appears damaged.
Even browning - might be okay even for GC
Consistently brown except for an area (in the lower right corner) that is very white, with a sharp border between the two - ???
Dark mottled brown, with a much lighter area in the center - ???