Introductory: IT IS, unfortunately, a general observation that a large portion of today's Orthodox Christians are not sufficiently informed on matters of faith, worship, and life. They have only a few, sometimes incorrect, notions, often contrary to what the Church of Christ teaches, based on the Holy Scripture and its long Tradition.

This observation is not ours. It is expressed or stated also by official platforms of its shepherds and ecclesiastical publications. Bishops have declared before the Synod of Hierarchy: "Sermons are delivered, both verbally and in writing, but what happens after all, that ultimately our people remain uneducated? What is to blame?" (magazine "Church" 2010, p. 405).

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

Without intending to replace, even in the slightest, our ecclesiastical shepherds in their prophetic work, nor to ignore the existence of very important and extensive books by significant authors who have dealt with the relevant themes (which we recommend for study), in this current Series of brief pamphlets we offer to interested clergy – as assistance in their work – and lay readers, a concise "bouquet" of texts that are easily readable, understandable, do not cost much (in a time of crisis), and aspire to provide the necessary knowledge to every Orthodox Christian.