Writing indentations are one of those defects most beginners don’t notice until they tilt the book under a raked light. They can be tricky, because even if the ink is long gone (erased or faded), the physical impressions in the paper fibers remain.
A writing indentation is a physical impression left behind when someone wrote on the top of a stack of comics or paper. The pen or pencil pressure doesn’t always leave ink, but it presses the fibers of the comic below into grooves. These grooves can affect:
· The front or back cover.
· The first few interior pages (if the pressure was strong).
· They look like faint “ghost writing”
Someone used a comic book as a writing surface (for signatures, notes, etc.). Storing books under piles of paper where writing transfers pressure through. Even a kid tracing shapes on top of a comic can leave permanent indentations.
· Visible as lines, letters, or scribbles with no ink.
· On glossy covers, they reflect light differently.
· On matte or vintage newsprint, grooves under fingertip.
Yes — but only if the fibers are compressed, not torn. Writing indentations are generally pressable defects, since they’re just displaced fibers.
Unfixed indentations: Graders will catch them under angled light; even light writing impressions can hold a book back from 9.8 to 9.4.
After pressing: If fully removed, graders won’t note them at all. If fibers are torn (deep gouges): Permanent. You can flatten, but paper fiber damage will always show. Ink cannot be removed.
Writing indentations are much more common on modern glossy comics, because the smooth coating shows every mark under light. Never press too hard with the tack iron — gloss loss from over-burnishing can be worse than the indentation itself. Always inspect under a raked light source before grading — these are often invisible until the last second.

1. Practice removing writing indentations on various eras of books

2. Write a word on a piece of copy paper resting directly on front cover of a test book.

3. Use the Cut Out board to isolate light steam to the affected area.

4. Warm the cover surface by applying heatwith the tack iron (212F).

5. Begin rolling the ball bearing around in cross patterns and circular swirls. Apply steady but light pressure. If you press too hard you will stretch the paper fibers out, causing permanent damage. Check to see if the indentations passed through to interior pages.

6. Repeat steps 3-5 until most of the writing indentations have been removed. Place book in the humidity tank. Press book following the guidelines of the corresponding formula in Comic Book CPR: First Edition.
Comic Book CPR: First Edition is a giant 388 page comprehensive beginner’s guide to cleaning and pressing comic books, written for collectors who want to improve grades, eye appeal, and long-term preservation without relying on third-party services. The book walks readers step by step through inspection, dry cleaning, humidity control, pressing techniques, defect identification, and risk avoidance, using clear language, full-color photos, charts, and real-world examples. Designed to help readers recognize pressable versus unpressable defects and avoid costly mistakes, it provides a practical foundation for safely improving comic books at home while protecting their collectible value.
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