It is rare to find a crackerjack scientist who can write like the wind, describe complex matters in understandable language, and entertain the reader with clinical stories of real people in real circumstances - all the while showing us how evolutionary psychiatry offers immediate real-world remedies to the problems of living. More, he makes his journey of discovery ours, and with all the humility of a true explorer. In 79 years, of which 50 have been spent teaching students and practicing psychology, I can't think of another "break through" book to better explain the mental health ailments of the modern world as viewed through the lens of deep time. Anyone interested why the human condition is the condition it's in right now, will find this book illuminating. Paul Quinnett, Ph.D.