What is your favorite book ?

Is there a book that always gives you goosebumps or affects you every time you read it? Or is there a book that you have studied for a long time and the information in it has a direct impact on your life? Which books do you recommend for personal development? Personally ''Lord of the Flies''by William Golding was one of the most impressive books I have read. Also I really like Divine Comedy by Dante.