Introduction: IT IS, unfortunately, a common observation that a large portion of today's Orthodox Christians are not adequately informed on matters of faith, worship, and life. They have little knowledge of these topics, sometimes not accurate, and often contrary to what the Church of Christ teaches, based on the Holy Scripture and its long-standing Tradition.

This observation is not our own. It is expressed or articulated also by official statements from its pastors and ecclesiastical publications. Bishops have declared in the presence of the Hierarchy Conference: “Sermons are given, both orally and in writing, but what is happening after all, why do our people remain uninstructed? What is to blame?” (journal "Church" 2010, p. 405).

“Our people are uninstructed and let us ask again whether this observation honors us, as well as who bears the responsibility for the uninstruction of our people” (“Church” 2013, p. 171).

Without having the intention to substitute, even in the slightest, our ecclesiastical pastors in their prophetic work, nor to ignore the existence of very important and lengthy books by significant authors who have dealt with the relevant themes (which we recommend for study), in this current Series of short volumes we offer to interested clergy – as an aid in their work – and lay readers, a concise “bouquet” of texts, that are easily read, comprehensible, cost-effective (in a time of crisis) and aspire to provide the necessary knowledge to every Orthodox Christian.