Unlike other works on this theme, Sergei Prokofieff's short book is not a straightforward introduction. Presupposing an acquaintance with the basic principles of anthroposophy, it focuses instead on the central Christological insights which form the core of Rudolf Steiner's philosophy. "What is Anthroposophy?" is a personal work in the sense that it reflects an individual's own endeavors to build a connection to anthroposophy. As the author states in his Preface: '...as soon as we comprehend anthroposophy as something living, we are concerned not merely with defining it intellectually but, rather, with developing a real relationship to it...' He elaborates: 'The content of this book will probably reveal more about the author and his relationship to anthroposophy than about it itself, for its nature is basically beyond description and consequently evades any purely intellectual definition.' This is a valuable addition to the introductory literature on anthroposophy from an established and well-respected author.