If the markings are sitting on top of the page, you can try to remove with different kinds of professional/artist erasers (I.e. not dollar store quality).
Try kneeding eraser (roll it over, not rubbing it) a few times to see if it helps. You'll need to do it several times to lift off the dirt (if it works).
Another eraser to try is an adhesive removing eraser. You'll have to do small movements/ spot treatment to remove the first.
You can look for other polymer erasers from an artist shop.
Artist erasers tend to be better quality than regular school stationery because artists sometimes want to lift graphite off the paper as cleaninly as possible, which is what you're trying to achieve. If you choose to use an eraser, make sure to make small movements in one direction to prevent ripping or creasing the paper.
If the markings have stained the paper itself then you're SOL.
When cleaning book pages, you must handle it with care so as not to worsen the situation, and you can do that by.
1.Dust the pages gently: Use a soft brush or cloth to remove any dust or debris from the pages. You can also use a soft-bristled paintbrush to gently sweep over the pages.
2.Spot clean the pages: For spills or stains, you can use a clean cloth dampened with distilled water or a mixture of distilled water and a gentle cleaning solution. Blot the stain, being careful not to rub it in.
3.Avoid harsh chemicals: Avoid using strong chemicals, such as bleach or vinegar, on your book pages, as these can cause discoloration or damage to the paper.
4.Dry the pages carefully: After cleaning the pages, blot them gently with a clean, dry cloth to remove any excess moisture. Then, let the pages air dry completely, away from direct heat or sunlight.
Hi there. Your post would be better asked in our Simple Questions thread. It helps us keep the main subreddit focused around broader discussion rather topics which only apply to an individual. Thank you!
Icefrisbee OP t1_j8fklll wrote
https://www.reddit.com/user/Icefrisbee/comments/111msjs/pictures/?utm_source=share&utm_medium=ios_app&utm_name=iossmf
Pictures of markings(her names blurred out)