Engaging. Thought provoking. Easy to read. Hard to put down. Again, thought provoking. I read it while a friend was visiting and I described my favorite parts of every chapter to them as I read it. Then we'd discuss the wide reaching and psychological implications of what the book said. It's a fun book to talk about. Fun to speculate about. I even wrote down my favorite quotes. It might actually be something that I read a second time. I really wish that there was more information, maybe a second book; but I guess one of the points of the book is to let your own imagination run wild. Yeah, it's stimulating.