"Is He Lying to You?: An Ex-CIA Polygraph Examiner Reveals What Men Don't want You to Know" by Dan Crum is quite an interesting book. When one gets past the irony of a manly CIA examiner that works for national security writing a dating book, the meat of the book takes center stage. Crum goes into extensive detail about many different cues that signal lying. These are more than the obvious lack of eye contact and show that he really knows what he is talking about. Also, there are examples of people the author studied and experimented with. Their tales are equally interesting as they relate to general males and females across a wide spectrum. There is even a website included where readers can download supplemented materials and even a journal to keep track of their "lie detection" like the people in Crum's experiments. After that, there are parts of the book that give advice on what to do once lies are discovered. This book is well written and not graphic even for a dating book (euphemisms are used in place of vulgarities). Also, the tips in this book will help women [and men] spot lies even if they are not date-related.