This book can rightfully be called the first modern Orthodox encyclopedia for children. It simply, clearly and interestingly tells about the main truths of the Orthodox faith and the rules of church life. An accessible presentation, many interesting facts, answers to a variety of children's “why?” make the book an indispensable guide to the world of Orthodoxy. The text is based on the famous textbook “The Law of God for Family and School” by Seraphim Slobodsky (1957), “Catechism” by Metropolitan Philaret (1822 – 1823) and other authoritative sources. This publication is adapted for the widest range of readers and approved by clergy.