From left: 1. World History B Question and Answer - New, unused, no writing. 2. Visual World History - Fill-ins up to page 45 are written in orange pen. They can be erased using the red sheet on the last page. No writing after page 195. I thought it was a good book for visually understanding world history. 3. World History Question and Answer - I didn't use it much, but I have checked the beginning part with a Frixion pen.