Well-written and accessible to the intelligent reader, Cyril and Methodius of Thessalonica tells the history of the life and work of two great Byzantine missionary brothers who laid the foundation for the acculturation of the Slavs. Tachiaos shows no hesitation in stating that by laying the foundation for the acculturation of the Slavs Cyril and Methodius enriched Slavic culture nor does he hesitate in describing Byzantine culture as richer and more developed. He concludes that the Slavs themselves acknowledge their debt to these two in the hymns and cult of the two saints. The book is worth reading, demonstrating Orthodox missionary methods, the influence Cyril and Methodius had in the acculturation of the Slavs, and that obedience and faithfulness in the end may be far more lasting than the success of the immediate future. ( )