This is quite a scholarly book in that the Author is quite a master of Hebrew, and of the Ancient Near East, that I must admit I was somewhat lost at times :) That being said, this is an excellent book covering what both the Old and New Testaments say about Angels - as well as a good coverage of Second Temple (including Apocrypha and Pseudepigrapha) writings as well as early (1st few centuries) Christian writings. The Author is quite frank about what Scripture says and what it doesn't say, and he does include some alternate views. So that makes this quite a good reference book. For those a bit overwhelmed by the Hebrew etc, I do recommend the final 2 chapters - "7. Special Topics in New Testament Angelology" and "8. Myths and Questions about Angels" - these are very worthwhile for background info whether you are preparing Sermons or doing personal Bible Study. This book is very well indexed, with a good Bibliography and useful footnotes.
"Miko" - Michael Mikolajczyk — EditedAgreed, . I have the 'Angels' book on my Kindle but will be purchasing it for Logos to be able to do a more in-depth study with it. It is fantastic. I can already see that it will become a valuable resource for many years to come. I have found all of Heiser's books to be of the same level as this one and they are a great help. Welcome to of the supernatural of the weird and wonderful, I know you will be blessed by it all.