Adventism, What Is It? Its Relation To Theology And Prophecy is a book written by William Sheldon in 1868. The book provides a comprehensive overview of Adventism, a Christian movement that emerged in the 19th century. The author explores the history, beliefs, and practices of Adventism and analyzes its relationship to theology and prophecy. The book is divided into several chapters, each of which focuses on a specific aspect of Adventism. The author...