The book that changed my life is Chinese Cinderella by Adeline Yen Mah. It changed my life by changing how I saw myself. I read Chinese Cinderella when I was in year 6 for the first time ever (I often read it now still). I was then an only child and often took everything I received for granted and thought nothing of my parents often taking time off work just to be with me. But once I read this books I realised how lucky and grateful I should be. It taught me that there are people much much much worse off than me and that working hard pays off no matter the circumstances.
Read more about Chinese Cinderella here.