I read it twice with a cover on it☆ It's in very good condition! A textbook on a new way of aging. You can learn about the reality of aging and how to utilize health information. - Title: How People Age - Author: You Kusakabe - ISBN: 978-4-06-533969-9 - Price: 920 yen (excluding tax) - Content: A textbook on a new way of aging Thank you for looking.