Gallup presents the remarkable findings of its revolutionary study of more than 80,000 managers in First, Break All the Rules,...

Gallup Press

Good to Great is one of the best management-related business books I’ve ever...

Jim Collins

This game-changing book became a #1 international bestseller for good reason. Lean...

Sheryl Sandberg

Outliers is credited with popularizing the research that led to formulating the 

Malcolm Gladwell