If you want a book, go to Amazon and look for a copy of "The Shotgun Book" by Jack O'Connor. It's somewhat dated having been written in 1964, but the basics don't change. I found a nice, hardcover copy with a dust jacket for $0.25 not too long ago. Yes, that's right. Twenty-five CENTS, plus about four bucks shipping.
For God so loved the world, that He gave His only begotten Son, that whoever believes in Him should not perish, but have everlasting life.
John 3:16 (NKJV)