A very useful document that you can use to understand the Christian faith is the Westminster Confession of Faith.
This document lists all key areas of faith including Creation, God, Man, the Bible, Sin, Saving Faith, the Church, the Sacraments, and Life After Death. In all it touches on 35 areas in 55 pages.
The thing I like about this document is the explanations and then it lists all the Bible verses as references. So you can look up the verses to see where the belief comes from. Unlike the Catholic Catechisms, the sole references are from the Bible.
If you are interested the EPC has one on their website here.
PASSIONAustralia.blog 