This is a set of books related to the Ten Stems Appraisal Method (Jikkan Kanpo), said to be the pinnacle of Four Pillars of Destiny (Shichūsuimei). 1. Shichūsuimei Practical Appraisal Course (Basic Edition) - Taishu Ogata 2. Shichūsuimei Practical Appraisal Course (Applied Edition: Kō/Shin) - Taishu Ogata 3. Shichūsuimei Practical Appraisal Course (Applied Edition: Bo/Ki) - Taishu Ogata 4. Shichūsuimei Practical Appraisal Course (Applied Edition: Hei/Tei) - Taishu Ogata 5. Tekitensui - Annotated by Taishu Ogata 6. Kyūtsū Hōkan Volume 1 (Kō/Otsu) - Translated by Taishu Ogata 7. Shichūsuimeigaku Okigi Den - Intermediate Level All published by Nakao Shoten. This is a set of 7 books. They are in excellent condition, with no writing, torn pages, detached pages, or odors. The Ten Stems Appraisal Method differs from the Four Pillars of Destiny practiced by using the so-called "gods and killers" (shinsatsu) and "transforming stars" (tsūhensei) found in ordinary bookstores, and boasts a high degree of accuracy. The useful gods (yōshin) differ depending on the season, even for the same day stem (nikan). Furthermore, for example, if there is Bo (戊) as the food and injury star (shokushō) for Hei (丙), it is not considered a food and injury star in the Ten Stems Appraisal Method. Also, the useful gods differ depending on the nature of the ten stems. For example, for the metal element (kingyō), Tei (丁) may be used for Kō (庚), but Shin (辛) does not favor Tei. In this way, it is a world apart from the Four Pillars of Destiny found in the market. There are also outer and inner structures (gaikaku, naikaku). It is difficult to study on your own, but these 7 books are written in considerable detail, so I believe they will become your bible. I hope they will reach those who are thinking of seriously studying Four Pillars of Destiny, as divination will surely be useful in the future. Thank you.