Thank you for viewing! [Product Name] Set of 4 New Books/Visual Books on Thought, Society, AI, and Space [Contents] This is a set of the following 4 books: ・Japan's Declining Birthrate Society (Iwanami Shinsho) ・The Impact of AI (Kodansha Gendai Shinsho) ・13.8 Billion Years of Cosmic Scenery Illustrated Encyclopedia (Visual Shinsho) ・Big Picture Perspective (Kadokawa Shinsho) [Condition] These items have been stored at home, but overall, they show little signs of use and are in relatively good condition. We have performed simple cleaning as much as possible before shipping. [Appearance and Damage] ・There are only very minor scratches on the cover. ・There are no noticeable tears or major stains, and the overall condition is good. [Inside Page Condition] ・No writing or noticeable folds are found. ・The pages are in good condition, and you can read them comfortably. ※Please check the photos for details of the condition. [About Purchase] ・Instant purchase is welcome. ・Please feel free to comment if you have any questions. ・Shipping method may be changed depending on the situation. ・Please purchase if you understand that these are used items stored at home. Thank you very much.