I will be selling some of my personal textbooks due to a job change (16/18). These were originally purchased used. At first glance, it seems there are only the markings on the pages shown in the images, but please refrain from purchasing if you are concerned. The book is old, so the paper feels somewhat deteriorated. It contains moderately challenging problems, suitable for mid-tier to top-tier schools, categorized by subject. I am also selling other textbooks for junior high school entrance exams.