Kim Il Sung's work, made public on December 25, Juche 61 (1972), clarifies the struggle of the DPRK government for the socialist revolution and construction, the advantages of the socialist system in the DPRK and the main contents of the Socialist Constitution of the DPRK and the tasks to steadily develop the socialist system.

Kim Jong Il's work, published on December 25, Juche 84 (1995), clarifies the idea that respecting the forerunners of the revolution is the requirement of the revolution and indicates the principal issues arising in establishing the moral traits of respecting them and encouraging the people to cherish noble moral obligation.