The Catechism of the Cartholic church was first published in 1994 and has been revised and edited up to the present day. It is the current Catechism approved by the Vatican for the instruction of the faithful.
The Baltimore Catechism was published in 1885 and is designed for the catechism of children. It is arranged primarily in question and answer format and although it was officially replaced by the Catechism of the Catholic church,