Author

Books by Marcus Buckingham and Donald O. Clifton

Marcus Buckingham is a British author and researcher who spent nearly two decades at Gallup before founding his own research and consulting firm. He is the architect of the StrengthsFinder movement and the author of multiple books extending that framework. Donald O. Clifton, who died in 2003, was a psychologist and chairman of Gallup who spent more than fifty years studying human strengths and talent. He is credited with creating the StrengthsFinder assessment, which has been taken by more than twenty-five million people worldwide. The American Psychological Association named Clifton the father of Strengths-Based Psychology.