Although it has been used very little, it was left in a car, so there is some bending due to the heat. There are no problems with its use. There are no writings or markings. [Contents] ・2025 Calendar ・Age Table ・Monthly Planner (2024/11～2026/3) ・Weekly Planner and Diary Section (2024/12～2026/1) ・Memo Section ・Technical Data 1. General and Basic Data 2. Materials 3. High-Voltage Receiving Equipment 4. Trunk Line Equipment 5. Power Equipment and Control 6. Lighting Equipment, Branch Circuits, etc. 7. Symbols and Wiring / New Energy Generation 8. Maintenance Management and Testing 9. Fire Protection and Environment 10. Electrical Safety and Electrical Business Act Related Laws 11. Other General Information ・2026 Calendar