I purchased this book to help in social interactions with strangers. This book did not help with anything of the sort. That is my fault for not reviewing the description better. In summary, this book states that we can not gain any valuable knowledge about other humans using inferences/past experiences, crime only happens in a few select areas, and the police that attempt to find crime using traffic stops are a waste of time. People involved in criminal activity always use vehicles, they travel, and therefore could be anywhere. Overall, this book made strange points that have zero bearing on how to interact with strangers.