These are the materials I used to study for last year's Common Test for Earth Science Basics. Basic Master of Earth Science Basics Earth Science Basics Textbook (Keirinkan) Lead α Earth Science Basics New Stage Earth Science Charts and Diagrams - Basic Master of Earth Science Basics → No original markings. As shown in the photo, there is writing in orange pen on only the first page, 1️⃣. There are no other markings on the other pages. I mainly used copies, so I only used it once. - Earth Science Basics Textbook (Keirinkan) → There was a name written on the bottom right of the back cover, but I erased it with an eraser. There are no markings inside. - Lead α Earth Science Basics → As shown in the photo, there are about 42 pages with ○✕ markings (151 pages in total). As shown in the photo, there are eraser marks where I erased the name. I apologize. - New Stage Earth Science Charts and Diagrams → There are no markings inside. As shown in the photo, there is a name written. Except for the "Basic Master of Earth Science Basics," the materials overall show signs of use. Please understand. Regarding the markings, as stated above. I will erase the names with a marker before shipping.