This small book intends to do the opposite of what Satan asks of us: to leave him alone (Mk.1:24). He wants to stay hidden in basements and attics, and especially in human lives. And sadly, the church has mostly complied with his demands. We do not want to talk about demons and flee from deliverance services. But ignoring Satan and his henchmen will not stop them from wreaking havoc on human lives. It is not like 'you leave me alone and I will leave you alone.' Jesus said that the devil aims to steal, kill, and destroy human life (Jn.10:10). To this end, his mission on earth was to bring the devil out of hiding and then destroy his works. The kingdom of God is most present when demons are identified and cast out (Lk.11:20). If we will usher in the kingdom of God, we must necessarily expel all illegal occupants. And so, we must educate followers of Jesus on the nature, ways, and works of the enemy we confront and how to win the battles against them. We must teach them about the wiles and devices of the enemy and how to put on the whole armor so that they can stand in the evil day. Hopefully, this little book will add to your artillery for the war against principalities and powers and the rulers of the darkness of this world.