Catechism of the Catholic Church
The Catechism of the Catholic Church (Latin: Catechismus Catholicae Ecclesiae, commonly called simply "Catechism" or "CCC") is an official document from the Vatican that details the religious beliefs of the Catholic Church in book form. The current catechism was approved and endorsed by Pope John Paul II in 1992, and is considered the most universal and authoritative Catholic catechism since the Roman Catechism (or "Trent Catechism") of 1566.
The Catechism does not have a single author, but is instead made up of excerpts of writings from saints and the church fathers. It is organized by topic and arranged into numbered sections for ease of access, not unlike the system of chapters and verses in the Bible.