But--you can also use watercolor on any paper at all. However, the results can be frustrating. Can you tell the paper of this little painting wrinkled a lot near the top?
BUT! There can be advantages to using this kind of paper. In fact, I had intentionally bought this little book because it was made for drawing, not painting. I knew the paper would not be ideal for watercolor. It was best for pen or pencil (no water involved there!). Look how nicely it behaved with pen (even with my sloppy writing).
Mediocre paper also has the disadvantage of colors seeping through to the other side of the page, like this:
Next post, I'll share some of the discoveries on that trip. Come back and visit!