Habits have a huge impact. They are a tenacious and powerful force that can dominate your life. Good habits, such as regular exercise, early bedtime and early rise, regular reading, etc., will quietly internalize your temperament, change your behavior, and thus change your destiny. Bad habits, such as smoking and overconsumption, will make you sink deeper and deeper into the quagmire of life. This article will share 4 books on habit formation and behavior change. They can help you understand habits, change habits, optimize personal behavior, help you establish a sense of order in life and work, and make you better and better.