binding discoloration - The Image gets blurry as the perspective warps to either side due to the page bending
bleed through - Visible contour of illustrations from the opposite side of the page
color halftone - Visible printing dots, usually in a high definition scan
color issue - The color of the image seems far from ideal, it may be low contrast between blacks and whites, over-saturation, or even the hue shifting. Can either be the result of poor or lack of editing, deterioration of the paper
