James Clear is an American writer and entrepreneur best known for Atomic Habits, which has sold over 20 million copies and been translated into more than 50 languages.
His central idea is simple. You do not rise to the level of your goals, you fall to the level of your systems. Small habits, repeated, compound into outsize change over time.
His weekly newsletter, 3-2-1 Thursday, reaches more than three million subscribers and is one of the most-shared self-improvement resources online.