There is a spiritual world beyond our physical vision but it is every bit as real as what we can see with our eyes. In Unseen: Angels, Satan, Heaven, Hell and Winning the Battle for Eternity (Bethany House), pastor Jack Graham (a Preaching contributing editor) shares biblical insights blended with valuable stories to share the truth about angels, Satan, heaven and hell. Drawn from Graham’s own preaching, this book would be an excellent resource for a sermon series on those unseen forces that impact our lives and our eternity.