I´m O.K, - You´re O.K:

Are you okay? That's probably the most important question anyone will ever answer, and Dr. Thomas Harris's groundbreaking bestseller helped millions respond in the affirmative. Using Transactional Analysis, which confronts the individual with the fact that he or she is responsible for what happens in the future, Dr. Harris explained how to distinguish the three active elements that make up everyone's personality (Parent, Adult, and Child), as well as the four life positions underlying people's actions. Best of all, his theories are presented in wonderfully easy-to-understand language, and there's practical advice on how to change harmful behavior. Anyone can lead a happier, more effective life and better understand friends and family.