A workbook that offers a new perspective on life. - Title: The Notebook for Not Regretting Tomorrow - Author: Kotaro Hisui - Publisher: Discover Twenty-One - ISBN: 978-4-7993-5012-8 - Price: 1500 yen Thank you for viewing. I purchased this book, read the author's book, and wrote in my own notebook, so I ended up not using this one. I am offering it for sale in the hope that it will be useful to someone. There are no markings or writings inside.