Retail price: ¥1,430 This is the official problem collection for the Aromatherapy Certification exam, perfect for preparing for both Level 1 and Level 2 exams. I used this once, took the exam, and passed. I think this is the best way to prepare for the exam. The inside is in very clean condition with no writing or markings. - Title: Aromatherapy Certification Official Problem Collection Level 1 & 2 - Published: June 2020 - ISBN: 978-4-18-20609-9 - Publisher: AEAJ Thank you for looking.