This book is the first in a series of booksof the neurogenetic structureof personality and its applicationsThrough this book, you can determine your personality type and those around you. You can also determine the nature of your disorder if you have any, to put yourself on the right path for an effective self-developmentThis book includes the traits about all essential personalities and rules of personality duals and triads. Comprehensive information about pure and hybrid personalities and their therapeutic approach will be detailed in the following books.This book is considered a solid foundation upon which specialists can build an accurate path towards Islamic psychology.This book is a new theory in psychology, so you must forget about current psychology and read the book on the new basis as you will not be able to combine the two.I hope this book will be an enjoyable journey for every person seeking answers to questions about what is going on within himself and how to manage his life.