Atomic Habits by James Clear is a #1 New York Times bestseller that provides a practical, science-backed framework for improving your life through small, consistent changes, or "atomic habits". The core idea is that tiny improvements (1% better each day) compound over time to create remarkable results, focusing on systems rather than just goals. Clear introduces the "Four Laws of Behavior Change" (Make it Obvious, Attractive, Easy, and Satisfying) to help readers build good habits and break bad ones, using principles from biology, psychology, and neuroscience.