The book "On Apostolic Succession. Parish Lectures, Second Series" by the famous author William J. Irons, is one of the key works in the study of the topic of apostolic succession in Christianity. In this book, the author provides an in-depth analysis of historical and biblical sources regarding the transfer of spiritual authority and authority from the apostles to their followers. In his parish lectures, the author examines the issue of the essence and significance of the apostolic succession for the development of the early Christian church and modern Christianity. Basing his arguments on well-researched interpretations of scripture and patristics, Irons creates a highly academic and detailed account of the historical development of church institutions. The book "On Apostolic Succession. Parish Lectures, Second Series" is an important resource work both for theologians and theologians interested in the development of church doctrines, and for all those interested in the history of Christianity and religious issues in general.