Seventh-day Adventist authors have maintained a fairly consistent understanding of Daniel's major prophecies, though several significant disagreements have taken place. One well known difficulty, and the theme of this research, has been the Church's interpretation of Daniel 8:14. In light of the current discussions, the purpose of this book is to: Demonstrate that a clearer understanding of the SDA doctrine of the sanctuary may be obtained by studying the Hebrew rendering nisdaq; Resubstantiate the validity of the LXX translation; Highlight Daniel 8:14's close relationship to the rest of the chapter and the typical Day of Atonement; and show the necessity of an investigative judgment.