Antibacterial hand sanitizer is amazing at getting pen and marker off of walls, desks, tables and even hands. It's that stuff that comes in the see through containers and you rub into your hands to kill germs. The alcohol in it dissolves ink away in seconds. No scrubbing.

Magic erasers are awesome too. We use those for crayon on walls and furniture.

Magic Eraser

Awesome

Magic eraser and water was my lifesaver for this stuff when I cleaned houses ?? also get the cheap ones they're all the same!!

Rubbing alcohol gets pen out pretty well

Magic eraser will get it right off??

Hairspray got sharpie off our car. I don't know if it would work on walls or not. You just spray it on a towel and wipe.

Magic eraser is amazing.

Magic eraser

Goo gone

Magic eraser!! Works wonders

Goo gone.

I found nail polish remover worked when i was getting pen/pencil/crayon off the wall/floor when my siblings done this

Try vinegar and baking soda mixed together. You could also try a magic eraser but if the paint is flat, it may rub it off completely.

I used baking soda when my daughter wrote all over my kitchen with permanent marker

Paint!!! Jk but maybe search it. Magic eraser? It looks like you have semi gloss paint so it should come off easily.