Before reading (and rereading) this book, I was on the fence about religion and classified myself as an agnostic. However, Richard Dawkins convinced me to jump off the fence entirely and into the field of atheism. This book is not at all written for those who are religious. It is for those who are undecided about religion or who have rejected it entirely. If you are religious you will hate this book. Dawkins knows this and makes it clear from the start that his goal is not to anger people, simply to challenge them. Multiple times throughout, he references scientific studies, historical studies, and his own experiences to back up his arguments. Dawkins exhibit a great theological knowledge, referring to specific stories and passages from the Bible frequently to illustrate the cruelty of the Old Testament especially. He details the religiousness of America and how that affects the politics, the major issues, and the society of the country. I found his discussion on morality especially interesting as he shows that one does not need religion in order to be a moral person.