Eric Garcetti is a fourth-generation Angeleno and the 42nd Mayor of Los Angeles.

Walt Cochran, a teacher in Kansas City, shared this touching video with us for Education Week about his children -- one disabled, one not -- who make you think about the depth of the sibling relationship. Lindsay, 10, suffers from a form of Muscular Dystrophy called Spinal Muscular Atrophy and has been in a wheelchair since she was 2 years ol...

Tommy McCall specializes in presenting complex and rich data sets.

In his native South Africa, Boyd Varty builds wildlife corridors to restore the environment and literacy centers to restore the human spirit.

With his artistry and creativity, Bill T. Jones has inspired a generation of dancers, choreographers -- and audiences.

Tiffany Watt Smith investigates the hidden cultural forces which shape our emotions.

David Lindell develops next-generation algorithms and systems for imaging the world in 3D.

Christian Benimana wants to develop the talent and potential of the next generation of African designers with socially-focused design principles.

Alan Lightman is Professor of the Practice of the Humanities at the Massachusetts Institute of Technology.

As leader of CAMFED (Campaign for Female Education), Angie Murimirwa is determined to remove the considerable hurdles faced by schoolgirls in Africa seeking an education.

John La Grou, a long-time electronics inventor, audio designer and entrepreneur, wants to save lives (and energy) with a new, smarter type of electrical outlet.

Aimée Eubanks Davis believes that our next generation of leaders will emerge from everywhere.

Scott Rickard is passionate about mathematics, music -- and educating the next generation of scientists and mathematicians.

A year ago, political scientist Tarig Hilal captivated the audience at TEDxKhartoum with the story of the Sudan he saw -- not a place of violent strife, political unrest or pervasive poverty, but a country of beautiful natural landscapes, a rich history and a hopeful generation of changemakers ready to turn a new chapter in their country’s histo...

Ghanaian Fred Swaniker founded a school and a leadership network to educate and support the next generation of Africa’s leaders.

Hannah Bürckstümmer has a vision for sustainable buildings and how organic solar cells can make it real.

For Steven Allison, it’s no longer sufficient to just study the natural world -- we must make sure our world stays ecologically sound for generations to come.

As the dean of the University of Pennsylvania's School of Engineering and Applied Science, Vijay Kumar studies the control and coordination of multi-robot formations.

A leading expert on sustainable materials, Andrew Dent has played an important part in creating a new generation of more sustainable products.

Anjali Kumar is a Brooklyn-born, first-generation Indian American author, attorney, advisor, speaker and “idea acupuncturist.”

Margaret Mitchell is a senior research scientist in Google's Research & Machine Intelligence group, working on artificial intelligence.

At Sinovation Ventures, Kai-Fu Lee invests in the next generation of Chinese high-tech companies.

Michael Pollan is the author of "The Omnivore’s Dilemma", in which he explains how our food not only affects our health but has far-reaching political, economic and environmental implications.

Texting is not a blight on the English language, says linguist John McWhorter in today’s talk, given at TED2013. Rather, texting is a “miraculous thing”: a novel linguistic mode that’s redefining the way we communicate with each other -- for the better. McWhorter points out that texting shouldn’t be categorized as written language --but a...

James Hansen has made key insights into our global climate -- and inspired a generation of activists and scientists.

UPS's Jon Bowers oversees driver and delivery training at one of the company's next-generation training facilities.

Douglas Rushkoff promotes human autonomy in the digital age.

Michael Levin's research could give rise to adaptive, self-repairing robotics and novel platforms for artificial intelligence.

As head of Intel Studios, Diego Prilusky is ushering in the next revolution in visual storytelling: volumetric video, which aims to recreate reality as a cinematic experience.

Bilal Bomani runs NASA’s Greenlab research facility, where he is developing the next generation of biofuels.