What makes a great leader? Management theorist Simon Sinek suggests, it's someone who makes their employees feel secure, who draws staffers into a circle of trust. But creating trust and safety — especially in an uneven economy — means taking on big responsibility.

Simon Sinek has a simple but powerful model for inspirational leadership -- starting with a golden circle and the question: "Why?" His examples include Apple, Martin Luther King Jr. and the Wright brothers ...

Simon Sinek explores how leaders can inspire cooperation, trust and change. He's the author of the classic "Start With Why"; his latest book is "Leaders Eat Last."

Leadership that includes and values everyone is the future of successful business. These talks curated in partnership with Brightline Initiative CEO Ricardo Vargas give great tips on how to be an inclusive leader.

TEDx events unleash fresh ideas from local communities. Close to 50,000 talks have been given at 10,000 events since the program launched in 2009. Below, the 10 most-watched TEDx talks posted to our homepage.

Stressed about an upcoming presentation? These talks are full of helpful tips on how to get up in front of an audience and make a lasting impression.

Want to help bring out the best in people? Let these talks support you in guiding others to succeed.

Some advice and perspectives to keep in mind when your company's going through structural changes.

If you’ve got a presentation to give at work or school — or are perhaps getting ready to speak at a TEDx event? — we recommend these talks to help get you pumped up.

Human resources is a huge part of what makes businesses work. Strengthen and motivate your team with these accessible talks focused on creating a rich, spirited company culture.

How to be happier at work? Start by focusing on happiness -- not, surprisingly, on work. We learned this fun fact from Shawn Achor's TED Talk. So we asked Achor to choose some more talks he loves, about making work and life a happier place.

What makes a great leader? These TED Talks offer surprising, nuanced approaches on how to inspire and empower others to do their very best.

You know how to write a resume and ask for a promotion. These talks go beyond the basics, offering insightful advice on how to think about our work lives.

From overcoming adversity to the latest in tech—these are the talks you binge-watched this year.

A thoughtful selection of engaging TED Talks, translated into 40+ languages thanks to our wonderful TED Translators community!

Are schools killing creativity? What makes a great leader? How can I find happiness? These 25 talks are the ones that you and your fellow TED fans just can't stop sharing.

Simon Sinek begins his talk with the story of former U.S. Army Captain William D. Swenson. In 2009, Swenson was on an operation in Afghanistan, near the Pakistan border, when his column was ambushed. It was bad; many were injured. During this ambush, Swenson called for air support and ran through enemy fire to rescue the wounded. The moment ...

"People don't buy what you do, they buy why you do it." This is the mantra of leadership expert Simon Sinek in one of the most popular TED Talks of all time (Watch: Simon Sinek: How great leaders inspire action). In his talk from TEDxPugetSound, Sinek looks at Apple, Martin Luther King Jr. and the Wright brothers -- and examines why they were so...

UPDATED: To see all these talks at one click, check out our updated Playlist: The 20 Most Popular Talks of All Time. As 2013 draws to a close, TED is deeply humbled to have posted 1600+ talks, each representing an idea worth spreading. So which ideas have had the most widespread impact? Below, a look at the 20 most-watched talks as of Dec...

In 2009, Simon Sinek gave the talk “How great leaders inspire action” to an audience of 50 people in a small room at TEDxPugetSound. It quickly became the second most-watched talk on TED.com. Sinek, of course, felt honored by the growing popularity of his talk—and by the opportunity to inspire people to think more deeply about the sense of p...

We live most of our lives wired and wound up, rarely pausing to relax or unplug from the daily grind. Our speakers in this session discuss the consequences of our ever-hectic lives, and remind us of the qualities we sometimes forget to foster. They include an author discussing why modern parenthood is out of whack, a leadership expert encourag...

Today in the United States, we'll celebrate Dr. Martin Luther King Jr., the civil rights leader. Dr. King was an activist, an orator, a thinker, and -- as several recent TED Talks have pointed out -- a visionary leader. These four speakers touch on ways in which King's passionate style galvanized a movement whose time had come. Freeman Hr...

About this event: Topics discussed at TEDxStCharles include motivation, personal branding and leadership. Our sought-after speakers include Harvard Professor Marty Linsky (co-author of "Leadership on the Line"), Professional Image Consultant Anna Wildermuth (author of "Change One Thing"), and motivational keynotes Aly Calvo and Andrea Kulberg (author of "20/20 Vi...

. Track and fielder Steve Mesler never imagined himself at the Winter Olympics, standing atop a freezing mountain preparing to compete. But after repeated injuries in his original sport, he realized that his Olympic dream wasn’t going to happen on the track he'd planned. Mesler opted to channel his drive and ambition into becoming a bobsledde...

TED is dedicated to ideas worth spreading. And that leaves many wondering exactly which ideas have been spread the most widely in the six years that TEDTalks videos have been available online. Here, a list of the 20 most-watched talks on all the platforms we track: TED.com, YouTube, iTunes, embed and download, Hulu and more, as of November 2...

Erin Freschi, a California mom who has worked in education for nearly 25 years, has a nightly ritual with her 8-year-old son, Sawyer. Instead of bedtime stories or songs, Freschi and her son wind down by watching TED Talks. The name of their unique ritual? TED Before Bed. “It started when Sawyer was in first grade,” said Freschi. “He i...

It's time for organizations and individuals to stop focusing on dominating the competition -- and learn from them instead. By identifying a Worthy Rival and looking at their strengths and abilities, we can keep improving and innovating, says writer Simon Sinek. Professor James P. Carse has argued that there are two types of games: finite games ...

Simon Sinek leads off his TED Talk, and his new book, with a moving story about a US military commander who loves his troops. It's among several TED Talks featuring lessons in leadership from the military. But when civilians are asked to draw such lessons from military leaders, let’s agree: It’s complicated. A few thing we don't have in commo...

Over the weekend, we asked the TED community on Facebook this question: "If you wanted to show a TEDTalk to open the school year, which one would you choose?" It's inspired by a question tweeted from the #jed21 conference. On Facebook, almost 1,000 responses flowed in. The job of tallying the results -- given in freeform comments -- fell to our...

Today, on the fifth birthday of TEDTalks video, we're releasing a new list of the 20 most-watched TEDTalks over the past five years -- as watched on all the platforms we track: TED.com, YouTube, iTunes, embed and download, Hulu and more ... What a great, mixed-up group this is! Talks about education and creativity, sex and fish, whizzy tech d...