Thank you! This is a supplementary booklet. A special magazine introducing life hacks and tips. For those who understand it has been stored at home, thank you. - Title: 50 People's Life Hacks - Contents: Chapter 1: 50 Case Studies, Chapter 2: A Life of Neat Organization - Content: Special feature on life hacks and tips Cardboard and reinforcement to prevent water damage. I plan to ship it in a new brown envelope, so I'm considering this price. I'd like to sell it quickly. I plan to release several copies.