Expelling Demons: An Introduction into Practical Demonology. Derek Prince

Expelling Demons: An Introduction into Practical Demonology
We hear very little today about the casting out of demons, but Jesus Himself said "those who believe" would do it. 
It's time for the church to overcome the "spooky" extremes and devote prayerful, open-minded study to the subject of demonology.