Page quality: white to tan to brittle — and why it caps the grade

Judge the paper, not the wrap

Page quality is the color and integrity of the interior paper — not the wrap, not the bag, not a white-balanced cover shot. Photograph an interior spread in even, neutral light. If you declare a page color in the notes, that declaration is a ceiling: the estimate will not pretend the paper is better than you said. If the photos look worse than the note, the photos win.

Covers can look fresh while interiors have tanned. The grade follows the worse reading. Completeness also sits above cosmetics: missing story pages or a missing cover is a severe downgrade no matter how white the remaining paper is. A beautiful shell around incomplete paper is not a high-grade book.

The ladder of color

White is uncommon on older newsprint and required for 10.0. Off-White to White is the lowest allowed for 9.9. Off-White is the typical minimum for 9.8 and above. Cream and cream-to-off-white are normal, honest interiors for very nice books that are not the top of the ladder.

Then the paper warms. Light Tan to Off-White cannot exceed 8.5. Tan to Off-White cannot exceed about 7.5. Brown pages are in the very-good and below conversation depending on structure. None of this is a moral judgment on storage. It is a ceiling: structure cannot outrun paper.

• White is required for 10.0.
• Off-White to White is the lowest allowed for 9.9.
• Off-White is the typical minimum for 9.8 and above.
• Light Tan to Off-White cannot exceed 8.5.
• Tan to Off-White cannot exceed about 7.5.
• Slightly Brittle cannot exceed 6.5.
• Brittle cannot exceed 3.5.

Brittleness

Brittle paper chips, flakes, or cracks at the edge when turned. Slightly brittle pages are stiff and beginning to lose suppleness. Once brittleness is present, pressing and cleaning talk is beside the point — the paper itself limits the grade. Do not force a brittle book open for a heroic interior shot. A careful spread at a natural opening is enough.

If you only photograph the cover, a conservative estimate must assume paper that might be worse than you remember from the shop. The interior shot is not optional decoration. It is how the ceiling is applied.