The sixth generation, Koreyuki wrote "Sesonji School of Japanese Calligraphy," the first Japanese calligraphy book, and the seventh generation, Koretsune wrote the book, "Saiyosho" (teachings on calligraphy) in which techniques taught from FUJIWARA no Norinaga were summarized.
なお、6代伊行は日本最初の書論書『日本の書流世尊寺流』を、7代伊経も藤原教長から授かった秘伝をまとめた書論書『才葉抄』を著している。