First-class Architect 2023 Reiwa 5 Exam Fill-in-the-Blank Questions (Questions and Answers) Ⅲ Regulations (Quick Study) Very easy to read, well-organized, and summarized. Although it's the 2023 edition, I think it can be used as a reference material and for memorization. The answers, in particular, will be helpful for last-minute memorization.