If you understand that human behavior does not deal with set rules then its important to understand how everything operates including human mind. You need to understand thought. Books particularly literary books can provide you with the climate of thought and help you develop a healthy attitude. Believe me everything has happened before, nothing is new. So you can read, understand and get solutions.
If you are interested in knowing about any topic start with "What can we learn" or if you are looking at book you can go to "BOOK".