There’s a big difference between being a boss and being a leader. Bosses command, assign tasks, discipline, and assert authority; leaders influence, inspire, mentor, and delegate authority. To lead effectively, you must routinely assess the way you think, act, and affect others. Check out these insights to take a page from some of the world’s best leaders—and go from good to great. For more on the mindsets that distinguish the best leaders from the rest, order CEO Excellence by McKinsey senior partners Carolyn Dewar, Scott Keller, and Vikram Malhotra.

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