Book by Jane Kubal Guide To Inquiry - The First and Most Important Part of R.C.I.A. - Our Best Evangelization Tool in the Catholic Church How to teach those inquiring about the Catholic Faith! Inquiry is the first part of the R.C.I.A. Process which stands for Rite of Christian Initiation of Adults. It is a process in the Catholic Church by which we teach those adults and children over 7 years of age, who want to become Catholic, about the Church and prepare them for receiving sacraments. This book is meant to be a guide for Catechists and parishes to design an inquiry that will meet the needs of the non-Catholics who want to join our faith community.