Ex-preterist theologian Dr. Brock Hollett has authored Debunking Preterism: How Over-Realized Eschatology Misses the Not Yet of Bible Prophecy. The book is replete with a wealth of illustrative figures and comparative charts that reinforce its main concepts. Special emphasis is placed upon a proper understanding of the biblical time statements and the “already and not yet” principle of eschatology. Joel Richardson interviews Dr Hollett on the attached video. May I suggest you schedule a time to watch it. Why Brock made the change and the circumstances surrounding it are dramatic to say the least. If you hold the Preterism position you will be challenged to reexamine the Scriptures.