Given the above, his books are the best and primary materials to know how Noh was continued and was changed in the era of Zeami and Zenchiku and also had significant influence on Nodensho of later years.
それ故に、世阿弥・禅竹期の能がいかに継承されいかに変わっていったかを知るかには、まさにその著作は第一級の資料であるし、また逆に後世の能伝書に与えた影響は極めて大きい。