Imagine a world where the majority of people wake up inspired to go to work, feel safe while they are there, and return home feeling fulfilled. It’s not as crazy as you might think.

From the author of the NY Times bestseller START WITH WHY, Simon Sinek observed that in some groups, trust runs so deep that members would literally risk their lives for each other. In other groups, no matter what incentives are offered, they remain in a state of civil war—fragmented and failing. Why?

The answer became clear in a discussion with a U.S. Marine Corps general when Sinek asked him, "What makes Marines so good?" "Leaders eat last," the general replied. Sinek saw it for himself. The lower-ranking Marines ate first, while the higher-ups took their place at the end of the line. What is symbolic in the mess hall is a matter of life and death on the battlefield: Great leaders are willing to sacrifice their own interests for the good of those they are responsible for.

Modern workplaces are often filled with cynicism, paranoia, and self-interest. However, the best organizations foster trust and cooperation because their leaders build what Sinek calls a "Circle of Safety." When everyone feels they belong somewhere, their energy is devoted to the common goal and seizing great opportunities.

In this book, Sinek also explores the leadership challenges of Millennials. As a generation, they seek to work somewhere with a sense of purpose—they want their work to have an impact—and they find the sense of purpose they seek only if their organizations create a Circle of Safety.

The compelling research and true stories in this book demonstrate that leaders who willingly eat last are rewarded with devoted, confident, and effective colleagues. It’s incredible how well this works.

Simon Sinek is leading a movement that has a very simple aim: to inspire people to do what inspires them. From members of Congress to foreign ambassadors, from small businesses to giants like Microsoft and WalMart, from Hollywood to NASA and the Pentagon, everyone who wants to inspire others is now seeking to learn about the WHY.

Simon Sinek works as an assistant at the RAND Corporation, teaches Strategic Communication in Columbia University’s graduate program, and is involved in the arts and nonprofit sector. When he isn’t traveling, he lives in New York City. His TEDx talk on the WHY is among the twenty most-watched talks on TED.com, and Sinek is now being invited by numerous companies to share his idea of the WHY.