This book is mentioned several times on a podcast that I listen to, called CULTS. I didn't realize this book was as old as it was, but I was very pleased to run across it since I have heard it mentioned so many times. Some of the information is out of date, in regards to leaders of cults/operations of specific cults. Overall, it was very interesting and still relevant. Margaret Singer has a lot of thought provoking takes on these situations. I can see why the book is quoted so frequently.