Identifying your predominant personality-type changes the way you approach life.If you know yourself - and, equally important, if you understand other people - you can confidently tackle your career and your personal relationships knowing exactly where you are coming from - and what everyone else is seeking.What this book presents you with is a revolutionary framework with which to comprehend your own needs, and the needs of others.Based upon the concept of evolutionary psychology, it reveals the determinants at the core of our characters - those very skills and psychological attitudes that we have inherited from our ancestors.