You need to read Signs of Life by Scott Hahn.
This is a wonderful and easy to follow book by this prolific Catholic author which gives the reader the scripture and tradition basis for 40 Catholic beliefs and practices. This is a book you will likely refer to for the rest of your life.
From the Publisher-Doubleday Religion:
ABOUT THIS BOOK
Scott Hahn, the bestselling author of The Lamb’s Supper and Reasons to Believe, celebrates the touchstones of the Catholic life, guiding readers to a deeper faith through the Church’s rites, customs, and traditional prayers.
Signs of Life is beloved author Scott Hahn’s clear and comprehensive guide to the Biblical doctrines and historical traditions that underlie Catholic beliefs and practices. Devoting single chapters to each topic, the author takes the reader on a journey that illuminates the roots and significance of all things Catholic, including: the Sign of the Cross, the Mass, the Sacraments, praying with the saints, guardian angels, sacred images and relics, the celebration of Easter, Christmas, and other holidays, daily prayers, and much more.
In the appealing conversational tone that has won him millions of devoted readers, Hahn presents the basic tenets of Church teachings, clears up common misconceptions about specific rituals and traditions, and responds thoughtfully to the objections raised about them. Each chapter concludes with loving, good-natured, inspiring advice on applying the Church’s wisdom to everyday life.