In a marvelous combination of history and anthropology, together with his scholarly dedication to Greek patristics, S. A. Mousalimas in his book, From Mask to Icon, emphasizes the transition to Russian Orthodoxy, as an indigenous movement among the native Alaskan people. The study con-centrates particularly on the Aleut and Alutiiq nations, for whom decades of evidence from diverse sources is available consistently to substantiate the author's premise, that this religion became these people's own. The work indicates how the ingrafting took place. The book is a significant contribution not only to the history of these Alaskan nations, but also to missiology in general.