▶︎Shipped via Mercari. This is an anonymous shipping service, so we can trade without exchanging personal information, offering peace of mind. ▶︎I will package the items to protect them from rain, so please rest assured. This is a set of 4 books on conversation and communication. They cover topics useful for daily life and work, such as small talk, listening skills, and tips for introverts. There are some markings and stains on the covers (see photos). ※Please check photos 6, 7, and 8. The contents are generally clean and there are no problems with reading. Please understand that these are pre-owned items stored at home. If there are any issues with the product, please contact me via the transaction message within 7 days of receiving the item. ※Please contact me before giving a rating.