When and by who the Shikashu was created is still unknown because each Shikashu was created in different situations, but there are many Shikashu which seem to have had influences on later poets and works such as the "Tsurayuki shu," a poem collection of KI no Tsurayuki and "Ise shu," a collection of Ise (poet)'s works.
成立時期や編者などは各家集ごとに状況が異なるため未詳であるが、紀貫之の歌を集めた『貫之集』、伊勢(歌人)の『伊勢集』など後世の歌人・作品に影響を与えたと思われる作品も多い。