Merrill Frederick Unger, author of Demons in the World Today, earned his A.B and Ph.D. degrees at Dallas Theological Seminary. He held pastorates in New York, Texas, and Maryland. He taught at Gordon College and Gordon Divinity School, and from 1948 to 1967 he was professor of Old Testament Studies at Dallas Theological Seminary.
The title is misleading in that this book is not about preaching, but Bible interpretation. In that good preaching springs from right interpretation, this book will help any Bible student. A worthy addition to your library.
Good book; a bit technical in places. I have a few minor disagreements with Unger, but I love the emphasis on discovering and preaching the author's intended meaning in each text.