This can be confusing, there are several different kinds of paper.
- Printer paper
- Watercolor paper
- Marker paper
- Mix media paper
Printer paper is great for most drawing projects, but if you're using alcohol-based markers (ie Bianyo, Copic) to color with I would recommend marker paper. If you're using washable markers (ie Crayola), they are similar to using watercolor paint, I would recommend watercolor or mix media paper. Printer paper soaks up the markers and you'll end up needing to replace the markers frequently. Mix media and watercolor paper are great for painting projects. The paper is thicker and can withstand getting wet from the paint.
I hope this information helps. If you have any other questions, regarding paper choice, please let me know.