Looking for a book
 

Hi :ywave:
I'm wondering if anyone have heard of a book called Kokeshi? I think it's supposed to be a collection of letters written by Sadako Sasaki, and this book is based on the letters:
Amazon.com: One Thousand Paper Cranes: The Story of Sadako and the Children's Peace Statue (9780440228431): Ishii Takayuki: Books
I checked both Amazon and bookdepository, but they didn't have it.
Thank you in advance. :)