This is the best book to read to understand the Russian Orthodox Church today, particularly its cowardly concubinage to Vladimir Putin.
Veteran journalist Lucy Ash is an unbeliever herself but she has a long-standing relationship with Russia, having reported on the country for decades. She begins the book by chronicling the beginnings of Orthodoxy in Holy Rus', namely the Christianization of Kievan Rus' in 988 AD under the rule of Vladimir the Great (the birthplace of Russian Orthodoxy being in Kievan Rus' also helps to explain Putin's ambitions to conquer Ukraine due to its symbolic value). Ash continues unfolding the history of Russian Orthodoxy, paying close attention to the Russian Church's relationship to the state. Along the way, readers encounter figures such as Nils Sorsky (c. 1433 - 1508), champion of the nestyazhateli (non-possessors) who opposed the ecclesiastical ownership of land, Patriarch Nikon of Moscow (1605 - 1681), whose ecclesiastical and liturgical reforms (which brought Russian Orthodoxy more closely in alignment with Greek Orthodoxy) were stridently rejected by the Old Believers, and the Russian statesman Konstantin Pobedonostsev (1827 - 1907), an arch-conservative official placed in charge of the Most Holy Synod. Ash also examines how the Russian Church operated during the oppressive Soviet era.
But this is not just a history of the distant past; it is also very much an exploration of Russian Christianity in the present. The two key characters in most of the book are Vladimir Putin and the current Patriarch, Kirill of Moscow but she also interviews and interacts with minor clergy and lay Russians. The Russian Church has thrived in the post-Soviet era as a hand of the state, with hundreds - even thousands - of churches and monasteries being built and the priesthood growing in number. Kirill and his clerics have vociferously promulgated traditional values and distrust of the "decadent" West yet much of the Church's funding has come from shady sources (notably the oligarchs) and corruption and hypocrisy abounds. Kirill has also been aggressively vying for dominance in the Orthodox world, not only in Ukraine but further afield, exporting Russian clergy around the world (especially pushing into Africa), and feuding with Bartholomew I of Constantinople, the Ecumenical Patriarch. Despite the Church's power and influence in Russian society, the actual rate of regular church attendance is incredibly low, with little more than a tenth of the Russian populace participating in worship at least once a month.
Highly recommend this deeply fascinating book!