After the mid Heian period, privately compiled 'Gishiki' such as "Saikyuki" (also referred to as Seikyuki and Saiguki; a work outlining court rules and customs) and "Hokuzansho" (manual of court rules and customs) began to be created.
また、平安時代中期以後には『西宮記』・『北山抄』のような私撰の儀式も作成されるようになった。