I bought this book a while back and found it be one of the most comprehensive of its kind. It has a respected space on my bookshelf. It covers other cultures as well as many human signals that one might not think about, like submissive , cut-off, and displacement signals. There's so many in this book!!Did you know that if a man's face turns red during a confrontation, he's probably less dangerous as a man's face that turns pale, since the blood is being moved to the muscles prepping them for physical action? I didn't read the whole book yet, but I've gotten through many chapters and found it absolutely fascinating! I took an animal behavior course in college and this definitely tops it as it actually has theoretical relevance to humans.Desmond Morris does it again with this brilliant book !