The Four Tendencies (2017) by Gretchen Rubin explores four personality types that shape how people respond to expectations in daily life. Expanding on her earlier work on habits, Better Than Before, Rubin provides a framework for understanding motivation, offering insights and practical advice to improve both personal and professional relationships.
Gretchen Rubin is a best-selling author whose books, including The Happiness Project and Better Than Before, have sold millions of copies worldwide. She explores human nature to help people understand themselves better and lead happier lives. Rubin also hosts the award-winning podcast Happier with Gretchen Rubin alongside her sister, Elizabeth Craft, sharing strategies for a more fulfilling life. As the founder of The Happiness Project, she has developed creative tools to support personal happiness journeys.