Hi Biblelearner123, the first book of Christian fiction that comes to mind is C. S. Lewis' collection of short stories called,
The Screwtape Letters. The thing is, while it's fiction, I can think of no more useful book (other than the Bible) to help you gain a better understanding of our common enemy and how he and his demons operate in our lives.
This collection, which was first broadcast over the radio by Lewis himself, was written from the demons perspective (Screwtape, for instance, is one of the main demon characters in the book). So when you see the word "
Enemy" in this particular book, it is always referring to God.
The Screwtape Letters is a Christian classic and a GREAT read
, but more importantly, it will help you begin to recognize the devil, his demons and their temptations/flaming arrow attacks for what they are far more quickly, why and how they use the tactics they do, and it will help you deal with them as well (though the Bible is certainly our principle resource for that).
You can read the book online for free
here or, if you don't mind spending some $$, I'd highly recommend the 50th anniversary "Annotated Edition" because of all the extras it comes with (both from Lewis himself, and from others as well). You can get that edition in book form or in Kindle at Amazon (and elsewhere, of course).
~Deut