รายละเอียด(อย่างย่อ) This book is a book about humans, a manual for us to learn how to understand humans, understand yourself and understand others. We can compare a man's life to a cup of coffee with different ingredients. For a cup of coffee to be delicious and to feel ritht, it has been through lots of processes to become the right coffee. The recipe to this right coffee could change the lives of millions of people.