This is a set of two Diet Examination textbooks. ◉ Diet Examination Textbook Level 1 Japan Diet Association Price: 2,000 yen + tax For those aiming to become a ＜Professional Advisor＞! Level 2 focused on explanations of basic terms and methodologies, while Level 1 delves deeper into academics, covering theories and calculations. ◉ Diet Examination Textbook Level 2 Japan Diet Association Price: 2,000 yen + tax For those aiming to become a ＜Lifestyle Advisor＞! Why do people diet in the first place? What are calories? How is body fat used? What is basal metabolism? The 'Diet Examination Level 2 Textbook' summarizes these simple and fundamental basics in an engaging and thought-provoking manner. I believe there are no markings or writings inside.