It is a common human tendency, that we blame the other persons, our circumstances, our family background, lack of qualification etc. for our failure to lead a successful life. We consider all these as our enemies. I too, often used to blame my outer conditions for my failures and used to feel helpless. Gradually, I realized that, there is not even single enemy of me outside. I realized that, my enemies are only found within me. These are the enemies cultivated by me, because of my ignorance. These enemies are so clever that, they disguise like friends, and try to kill me from becoming a person I should be. Your internal enemies are killing you, without your knowledge. As true to the title, this book will help you to kill all your internal enemies, and to befriend your internal friends. As you read this book, you will be able to identify many of your internal enemies and many of those enemies will die while reading this book itself. This book also will help you to turn your limitations into opportunities, and your weaknesses into strengths. You will start appreciating what you were criticizing before, and start criticizing what you were appreciating before. I believe that, whatever your life may be, you can change it for the better this very moment.