There are a few pages with markings (see photos, there may be more), but it's in relatively good condition. A chemistry fundamentals problem book perfect for university entrance exams. - Title: Chemistry: Fundamentals Problem Mastery - The Definitive Edition for University Entrance Exams - Content: A problem book for chemistry fundamentals, containing content for university entrance exams. - Features: Includes detailed explanations of atomic radii and electron configurations. Thank you for looking.