The Enchiridion (full title: Enchiridion symbolorum, definitionum et declarationum de rebus fidei et morum) is a compendium of all the basic texts on Catholic dogma and morality since the Apostolic Age. It has been in use since 1854, and has been regularly updated since. It is sometimes referred to as Denzinger, after its first editor, Heinrich Joseph Dominicus Denzinger.