There is a new version of this book out. And it now exists as an ebook!
Here are some links:
Physical book: Amazon : CD Japan
Ebook:
ebook Japan : Book Walker - Book Walker requires the user to be in Japan to view/purchase this item (or use a VPN)
Some examples below of the cover, table of contents, and first couple of pages. As far as I can see the pages look the same. When we’ve seen new versions of other books in this series there have sometimes been the occasional small variation in the text.
There also seems to be an additional new story at the end compared to the original table of contents.
Original book proposal post if you want to compare to the old version.