As a Catholic, I found this book very useful. Since this was originally written in Italian, it takes some time to get used to the style of writing. This book will change your perception of evil. Movies have commercialized them. They are way more cunning and deceptive. They operate in ways that would shock you. There are seventeen chapters in all and the chapter on the demon's behavior was particularly very scary. There is also a chapter narrated by a witness. He tells us his story and how he ...