What is the research behind the Clifton StrengthsFinder?

Based on a 40-year study of human strengths, Gallup created a language of the 34 most common talents and developed the Clifton StrengthsFinder assessment to help people discover and describe these talents. In 2001, the initial version of this assessment was included with the bestselling management book Now, Discover Your Strengths. The discussion quickly moved beyond the management audience of this book. The goal was to start a global conversation about what's right with people. It appears that the world was ready to have this conversation.