I passed the Reiwa 7 System Auditor Examination using this book. It explains from the basics, so even beginners will be able to write a passing-level thesis by the time they finish one book. (However, individual results may vary.) Title: Information Processing Textbook System Auditor 2025-2026 Edition Authored by Kazuo Ochiai Published by Shoeisha ISBN: 9784798190976 The appendices, such as the worksheets at the end, were copied and used, so they are still clean. <Notes> There appear to be no writings, but there is a possibility of oversight. There is a slight stain on the back cover, but it does not interfere with practical use. In addition, there may be scuffs on the front and back covers due to storage or use, so please check the photos for the condition. Recommended for those looking for study materials for qualification exams. It will be shipped with waterproofing and anonymous delivery. *Please understand that this is a used item before purchasing.