Radical Prayer handbook is a powerful book with specific instructions and guidance on how to pray and receive an instant response from God. It provides the fundamentals requirements to get prayers answered by God. The book contains several prayers for different situations.  With Biblical insights, Kelvin Armstrong a renowned evangelist offers specific prayers for 

-    Divine protection for us and our loved ones

He also discusses ways to make prayers more powerful with a swift response from God. His teachings have helped people find God and have a deeper connection with Him. Other books that he has written include the Audacity of faith, Hearing God's Voice and Engaging the Spirit Realm.