Angela Duckworth is an American psychologist and author, best known for her research on grit, which she defines as passion and perseverance for long-term goals. She is a professor at the University of Pennsylvania and has received numerous awards for her work in psychology and education. In addition to her academic contributions, Duckworth is the founder of Character Lab, a nonprofit organization that aims to advance the science and practice of character development in children. Her book, "Grit: The Power of Passion and Perseverance," has gained widespread recognition and has influenced educators and parents alike.