Having read many books and scientific articles on the topic "Church in the USSR," published in the West by both Russian emigrants (and sometimes anonymously or under a pseudonym by authors living in the USSR) and Western scientists for about 60 years, I was convinced that even in the light of materials available outside of Russia, my topic is far from exhausted. Most of the works of Russian emigrants (and Soviet authors of samizdat), for all their documentary nature, were most often subjective, biased and usually touched on a limited range of issues of any particular period of time. In fact, for the period 60-80s, with the exception of individual articles or purely journalistic books, nothing generalizing, analytical on this topic was written.