No known markings. Some of the areas where the pages have three-hole punching are torn through, making the page require reinforcement to stay in a binder. Ships in a binder whose rings close neatly.
This parent guide has what you need to run the history portion of Sonlight's upper level American History course. It totals over 400 pages of helps and resources. Although not the newest edition, it still provides a great education at a much lower cost than new.