- Angel FAQ by Lou Whitworth. Titled ‘Angel Quiz,’ but it is actually a listing of frequently-asked question.
- Angelmania: Close Encounters of the Celestial Kind Clete Hux
- Angelology: Angels by Greg Herrick
The term “angelology” comes from two Greek terms, namely, aggelos (pronounced angelos) meaning “messenger” or “angel” and logos meaning “word,” “matter,” or “thing.” In Christian systematic theology it is used to refer to the study of the biblical doctrine of angels. It includes such topics as the origin, existence, and nature of angels, classifications of angels, the service and works of angels as well the existence, activity, and judgment of Satan and demons (as fallen or wicked angels). Some theologians, however, treat Satan and demons under a separate heading, namely, demonology.
- Angels: archangels and heavenly messengers by Robert Longman. “This site is here to help guide you through your own processes of sorting out angels and other matters of faith, by teaching the Christian faith’s view(s) of these matters in a very un-official way.”
- Angels, God’s Ministering Spirits, by J. Hampton Keathley, III. Indepth article.
- Angels: The Good, The Bad, and The Ugly by Sue Bohlin
Angel stories are always fascinating, and in this essay I address angels: the good, the bad, and the ugly. The good angels are the holy ones, the bad angels are the evil ones, which the Bible calls demons, and the ugly angels are demons disguising themselves as good angels. These ugly angels have deceived many people in a culture that has embraced “angel mania.”
- Beware of angels from the dark side by Marsha West
- Evaluating Today’s Angel Craze by Ron Rhodes
Among the major contributing factors to the angel craze among Christians in the early 1990s were Frank Peretti’s mega-best-selling fiction books – This Present Darkness and Piercing the Darkness – which graphically depict behind-the-scenes angelic intervention in the lives of believers. Regardless of what one may think about the sensationalistic nature of these books, they certainly served to bring angels to the forefront in the minds of numerous Christians. Earlier, many had received a biblical crash course on this fascinating subject by reading Billy Graham’s book, Angels: God’s Secret Agents, which became one of the hottest-selling religious books of the 1970s.
New Agers have more recently become almost fanatically excited about angels because they have bought into a plethora of wildly unbiblical ideas about angels that nevertheless have great appeal in today’s religious climate. One reason cited for angel popularity in New Age literature is that angels offer people a spirituality that does not involve commitment to God or His laws.
- History of Angels in Western Thought
- Survey of Bible Doctrine: Angels, Satan, Demons, by Sid Litke. Outline format with Bible references
- What does the Bible say about angels? An overview at ChristianAnswers.net
- What does the Bible say about angels? Answer provided by GotQuestions.org
- What in Heaven’s Name? An Analysis of the Messages and World Views Coming from Aliens and Modern Day Angels. by Patty Tunnicliffe
Because Christ is not confessed according to a biblical formula, because all other Christian doctrines are similarly denied, because the entire world view that flows from these two phenomena stands opposed to a Christian world view, and because the messages are both overwhelmingly spiritual and act to form a new religion we must conclude that, whatever else is going on, the ultimate source of the messages cannot be of God. If they are not of God, the only remaining source of spiritual messages is Satan.
The Christian world view has lost a great deal of ground to the new world view coming from the heavens. It has happened in a surprisingly short period of time. It has been aided and abetted by cute ETs and cherubic angels and has been propelled by the media and a host of books. ETs and angels have become part of our culture today. Men are looking and listening to the heavens.
Christians need to understand the dangers of the messages coming from the clouds and respond accordingly. We are called to expose the deeds of arkness. But, Christians have dismissed the ET phenomena as absurd and fanciful, and have either ignored the modern angels or embraced them as being from God. The Christian response needs to be more considered. The body of Christ needs to look at what is being taught and promoted by these entities. The messages need to be set against the Word of God. Christians need to analyze the world views being promulgated, and, having done so, we need to say openly that this is not of God.
- 10 Questions & Answers on Angels by Robert M. Bowman
Learn about what the Bible says (and doesn’t say) aoubt these powerful servant. of God. Author Robert M Bowman sorts through myths and misinformation to answer these questions and more. Are angels for real? Do angels have bodies? Should we look to angels for spiritual guidance? Are we guaranteed angelic protection? Will we become angels?
- 99 Answers to Questions About Angels, Demons & Spiritual Warfare by B.J. Oropeza. A balanced, level-headed and Biblical treatment. Highly recommended. 
- Angels by Billy Graham
Angels: God’s Secret Agents is Billy Graham’s one-volume introduction to one of the most popular spiritual phenomena of our time. Firmly grounded in Graham’s close readings of scripture, Angels testifies to Graham’s own encounters with the heavenly beings and also records the many similar stories that other believers have told him over the years. Graham devotes entire chapters to the questions of whether angels are visible or invisible, how they differ from men and women, and how the angelic hierarchy is organized. He also discusses the much-debated theory that UFO sightings are in fact angelic appearances.
– Source: Review by Amazon.com
- Angels Among Us: Separating Fact from Fiction by Ron Rhodes
Angels are very much involved in our lives today—of that we can be certain. But when it comes to angels, how can we tell what is real and what isn’t? Angels Among Us provides solid, biblically based answers to pressing questions through a fascinating—and highly inspirational—tour of God’s Word. Readers will discover who angels are, what they are like, what they do…and most exciting of all, the ministry they have today.
– Source: Book description as cited by Amazon.com
- Angels and Demons: Agents of God & Satan…a Biblical Study by Victor Knowles
- Angels: Who They Are and How They Help–What the Bible Reveals by Dr. David Jeremiah
- Answers to Common Questions About Angels and Demon by H. Wayne House and Timothy J. Demy. Written in question-and-answer format for easy reading, this quick reference guide provides brief summaries of important biblical doctrines so Christians can confidently and honestly discuss their beliefs with family, friends, and neighbors.
- Sense and Nonsense about Angels and Demons by Kenneth Boa and Robert Bowman. Highly recommended.
Sense and Nonsense about Angels and Demons helps you cut through the clutter to see what the Bible actually reveals about spiritual beings both good and evil. Learn about * the fascinating history of ‘angelology’ * what an angel is—and isn’t * what angels do and why * what angels may look like at the rare times when they appear * the ‘Angel of the Lord’: when an angel is more than an angel * the devil and his angels * the origins of Satan: what the Bible really says
– Source: Book description as cited by Amazon.com
Some of the topics covered in this book include:
Answers to skeptical objections to belief in the existence of angels
Response to the theory that angels are extraterrestrial beings
Defense of the traditional view that angels are incorporeal beings
Refutation of the ideas that humans were or will become angels
Critique of the claim that Jesus is Michael the Archangel
Discussion of medieval theories about the orders of angels
Response to popular notions about guardian angels
Explanation of Psalm 91, often thought to teach that angels always protect believers from harm
Analysis of the biblical teachings and examples regarding angelic appearances to human beings
Tests for assessing modern claims regarding angel sightings
Defense of the biblical teaching that Satan is a real, fallen angel
Exposition of what the Bible teaches about how Satan came to be and what we can, and cannot, know about him
Critique of sensationalized beliefs about demonic activity, specifically about demonization and spiritual warfare
- Mythos und Wahrheit: Engel und Dämonen, by Kenneth Boa and Robert Bowman.
Dieses kompakte Buch erläutert präzise und fundiert die biblischen Aussagen zum Thema. Was ist ein Engel, was nicht? Was tun Engel, und warum? Die faszinierende Geschichte der Engelogie. Wo kommt der Satan her, was sagt die Bibel wirklich? Lassen Sie sich überraschen. Das Buch könnte aufräumen mit falschen Vorstellungen, mit Mythen und unnötigen Ängsten.
– Source: Buchen Beschreibung zitiert bei Amazon.de
- 10 preguntas y respuestas sobre los angeles Catorce páginas, folleto a todo color tiene abundantes ilustraciones, incluye un título explica por sí mismo y sirve como una herramienta de referencia siempre listo para su uso personal o en el campo de la misión
Dictionaries and Other Online References
 This book is no longer in print, but you may obtain second-hand copies at the Amazon.com link shown.