A standard for Denken (Electrical Engineer) Class 2, First Exam preparation, "Past Exam Master (15 years)" 4-book set. 【Set Contents (all 2025 editions)】 ・Theory 15 Years ・Machines 15 Years ・Power 15 Years ・Regulations 15 Years (Past exams from 2010 to 2024, categorized by topic) All books are unused and without any writing. The condition is good as they are unused after purchase. ※Only the Theory book has a noticeable scratch on the back cover. (See photo 5) Total list price: 14,520 yen (tax included) → Offered as a great value set. Highly recommended for those who want to: ・Efficiently prepare for the Denken Class 2 First Exam based on past exams ・Aim for passing through self-study Instant purchase OK / Not sold separately (for set learning)