Elizabeth Wiseman spent 17 years at Oracle working as a vice president alongside incredibly intelligent executives, affording her an inside perch from which she could observe how they used their individual capabilities in very different ways. Some leaders needed to be the smartest person in the room so they frequently overshadowed colleagues, killed ideas, and destroyed energy. Others used their intelligence to amplify the creativity and capabilities of the people around them - to help make everyone a genius. Witnessing this fascinating pattern, Wiseman and Greg McKeown launched a research project that involved interviews with more than 100 executives and their employees to uncover the differences between these two distinctive styles of leadership - what they call the Diminishers and the Multipliers. Using insightful, real-life examples, Multipliers defines and contrasts each style and lays out five key disciplines that can help managers avoid the Diminisher trap and become Multipliers: Create the Work Climate - Be The Teacher not The Tyrant; Set Direction - Be The Challenger not The Director; Manage Talent - Be The Talent Scout not The Empire Builder; Make Decisions - Be The Debate Maker not The Decision Maker; and, Deliver Results - Be The Teacher not The Micromanager. By applying these disciplines, current and aspiring managers will learn how to think and operate like Multipliers, and, in doing so, create genius everywhere, make employees smarter and more capable, and drive their teams to extraordinary performance.