Set of four books. The covers, exteriors, and sides have some yellowing, discoloration, and damage, but the pages inside are in good condition with little sign of use and are generally clean. *Please refrain from price negotiations.* *Set items will not be sold separately.* (Negotiations of this nature will be blocked without a reply. Thank you for your understanding.) *Shipping may be delayed depending on my schedule. If you are in a hurry, please ask about the estimated shipping date in the comments section before purchasing.* *Shipping is generally not available on weekends and holidays. Please check my profile page for any other long-term shipping restrictions.* *Packaging will be simple. Recycled materials may be used for packaging, so please be aware of this.* *We cannot accommodate sudden requests after purchase, so please ask any questions you may have before purchasing.* *You can purchase without leaving a comment.*