Gretchen Rubin is one of the most influential writers on the linked subjects of habits, happiness, and human nature.

She's the author of many books, including the New York Times bestsellers, Better Than Before and The Happiness Project.

A member of Oprah's SuperSoul 100, Rubin has an enormous following, in print and online; her books have sold more than 2 million copies worldwide, in more than 35 languages; and on her popular daily blog, gretchenrubin, she reports on her adventures in pursuit of habits and happiness.

She also has an award-winning podcast, Happier with Gretchen Rubin. She lives in New York City with her husband and two daughters.