TED Talks are influential videos from expert speakers on education, business, science, tech and creativity, with subtitles in 100+ languages. Ideas free to stream and download.

TED is dedicated to researching and sharing knowledge that matters through short talks and presentations. Our goal is to inform and educate global audiences in an accessible way.

Are schools killing creativity? What makes a great leader? How can I find happiness? These are the 25 most played talks of all time, updated yearly.

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TED-Ed celebrates the ideas of teachers and students around the world. Discover hundreds of animated lessons, create customized lessons, and share your big ideas.

Clean energy visionary Lei Zhang loves the Gobi Desert — the most Mars-like place on Earth. Why? Because of the promise it holds to provide the free, abundant solar and wind energy to …

Dive into our library of TEDx Talks — local speakers presenting to local audiences about everything from politics to pollination. We host all of their talks for the world to enjoy, explore, …

"The free, online, mainstream pornography that teenagers are most likely to see is a completely terrible form of sex education," says public health researcher Emily Rothman. She shares how …