Before revision: Books published to educate Korean people on filial piety include Hyohaengrok (효행록) first published in late Goryeo times and revised and republished in 1428, and compilation of filial piety rituals ( 효행등제등록) from 1655 to 1788.
After revision: Books published to educate Korean people on filial piety include Hyohaengrok (효행록) first published in late Goryeo times and revised and republished in 1428, and the Register of Loyalty and Filial Piety (1655-1788) (a register of those receiving government rewards for filial piety 효행등제등록) from 1655 to 1788.