Koshohajime (New Year lecture in the court) is an annual event of the Imperial court in which Shinko (Scholars give a lecture or explain achievements to the Emperor, the Empress, and the nobility) is given by scholars as a part of the Emperor's start of learning in January every year.
講書始（こうしょはじめ）とは毎年1月に天皇の学問始の一環として学者による進講を行う皇室年中行事。