-- Incorporates all the final modifications made in the official Latin text of the Catechism
-- Provides a much more complete index
-- Contains a brand new glossary of terms
-- Includes Pope John Paul II's 1997 decree promulgating the official Latin text.

All this new information adds up to 100 pages more than in the original edition which means the second edition is not only easier to use and easier to understand, it's the definitive version of the Catechism!