I purchased this book to learn about ZEB (Net Zero Energy Building) projects when I first got involved in one, but I never opened it because I switched to a different job before I could read it. It has been stored in the shade, so I think it's in relatively good condition. I would appreciate it if you could purchase it with the understanding that it is a used item. "ZEB Design Method" The Society of Heating, Air-Conditioning and Sanitary Engineers of Japan Price: ¥3565 Published: September 2019