The major textbooks used in Tenmon were the tenmonshi (astronomy records) "Kanjo (Historical records of the Han Dynasty)" and "Shin jo (History of the Jin Dynasty)", "Tenkanjo", "Sankehakusan (textbook for learners of astrology)", "Tenmon Yoshu (the summary of astrology)" and "Kanyo Yoshu (the summary of astrology)."
主に教科書として用いられたのは、天文では『漢書』・『晋書』の天文志や『天漢書』・『三家薄讃』・『天文要集』（『韓楊要集』）が挙げられている。