・ 2018 Edition Exam Version Denken 3rd Class Thorough Explanation Text: Regulations ・ 2018 Edition Exam Version Denken 3rd Class Thorough Explanation Text: Machines ・ 2018 Edition Exam Version Denken 3rd Class Thorough Explanation Text: Power ・ 2018 Edition Exam Version Denken 3rd Class Thorough Explanation Text: Machines ----- Systematically explains the scope of the Denken 3rd class exam by subject. With many figures, tables, and examples, it is structured for easy understanding even when self-studying. Although the exam year is the 2018 edition, the basic theory and concepts are still fully applicable today. Recommended as an input/review text for beginners.