It's been a while since a book on highly insulated homes that I can recommend has been published.

It's been a while since a book on highly insulated homes that I can recommend has been published.
Yesterday, President Koyama of Kumamoto Eco Works was featured on a blog.

Edited by HEAT20, a group led by Professor Sakamoto and Professor Iwamae
This book was apparently distributed at a public event held just the other day.
It will be released on April 4th on Amazon, and is currently available for pre-order.
I won't know if it's worth buying until I read it, so I'll wait and see before I decide.
However, when I came to Matsumoto City, Nagano Prefecture to give a lecture today, I received a message from the people involved.
I was able to see it.
Visually, there are many photos and color graphs, making it very easy to understand.
However, there was a lot of data I had never seen before, and to be honest, I couldn't imagine
The result was even better than above.
So I decided to order it at that moment.
I believe this is a must read book for home builders.
I recommend you order early.