Atomic Habits discusses how small, daily habits can have major impacts over time. It argues goals are less important than developing systems and processes. Good habits are created by making cues obvious, cravings attractive, and responses easy through habit stacking and manipulating the environment. Bad habits are removed by making cues invisible, cravings unattractive, and responses difficult. The book provides strategies for starting new habits easily through decisive moments and the two minute rule to avoid seeing the initial action as a challenge.