This book explains the patterns that define progressive levels of social maturity. Social maturity is a psychological concept that derives from research done by Piaget, Kohlberg, Erikson, Vygotsky and many others. Your mind learns patterns of thinking. With time, your mind is capable of reorganizing itself into new patterns. The patterns described in this book are: 1) selfish, 2) me-first, 3) team-player, 4) role-player, 5) statesman, 6) humanitarian and 7) ecologist. Those patterns influence the way you think about yourself, the way you relate to others and the way your team relates to other teams. Projects work best when you have compatible social maturity in yourself, your teammates, your team structure and your organization.