1 First of all, try to remove stains with white wine, drop a few drops of white wine on the stained part of the library desktop and wipe it with a rag. After wiping the desktop, no stains will be left.

2. Secondly, if it can't be removed, you can try to use essential balm. Apply essential balm to the stained place on the library table, and then wipe it with a paper towel.

Finally, if it still can't be removed, you can go to the librarian for help.