"Grit to Great" is a self-help book by American advertising executives Linda Kaplan Thaler and Robin Koval, published in 2015. The book argues that success in life is not determined solely by talent or intelligence, but rather by the "grit" or perseverance that individuals bring to their pursuits. Through a series of anecdotes and interviews with successful individuals from a variety of fields, the authors explore the characteristics and behaviors that enable people to overcome challenges and achieve their goals. The book provides practical advice for developing grit, such as setting clear goals, maintaining a positive attitude, and embracing failure as a learning opportunity. The book was well-received for its motivational and accessible style, and has been praised for its emphasis on the importance of hard work and perseverance in achieving success.