Thank you for viewing. This is the "Earth" booklet, sent regularly to members, October 2023 issue, number 37. I've only read it once. There are no noticeable stains, folds, or tears, so I think you can read it comfortably. The guidelines for the Clay Therapist and Instructor certification exams are also included, so I think it's helpful information for those who are aiming for them. Are you interested in clay therapy, clay therapists, or instructors? I have several other copies for sale. 1 book: 400 yen 2 books: 700 yen I prefer to do business with those who purchase without a price reduction.