A revised edition with amendments following the publication of the Editio Typica, containing extended subject index and the Reader's Guide to Themes. The first edition of the new Catechism went out across the world in many language versions. This gave the local Churches the chance to study it in depth. Through their bishops and teachers they responded with comments on texts that needed refinement. The present edition was developed in the light of these comments and published in Latin as the definitive Editio Typica. This book is the English translation of the Editio Typica.