"For more than 30 years, Los Angeles-based artist RISK has made the world his canvas, creating colorful murals on everything from highway overpasses -- known ..."

Spray-painted subway cars, tagged bridges, mural-covered walls -- graffiti pops up boldly throughout our cities. And it turns out: it's nothing new. Graffiti has been around for thousands of years. And across that span of time, it's...

What's the purpose of a company? In this bold talk, activist and filmmaker Abigail Disney imagines a world where companies have a moral obligation to place their workers above shareholders, calling on Disney (and all corporations) to...

In 2008, the global financial crisis decimated Latvia. As unemployment skyrocketed, the government slashed public funding and raised taxes, while providing relief to the wealthy and large businesses -- all without backlash or protest...

Kenya's minibuses -- known as "matatus" -- offer a convenient, affordable and colorful way for people to get around. But they also pose safety risks and accessibility issues for many of their passengers, especially women. Bringing a...

In Brazil, "catadores" collect junk and recyclables. But while they provide a vital service that benefits all, they are nearly invisible as they roam the streets. Enter graffiti artist Mundano, a TED Fellow. In a spirited talk, he...

What does this gorgeous street art say? It's Arabic poetry, inspired by bold graffiti and placed where a message of hope and peace can do the most good. In this quietly passionate talk, artist and TED Fellow eL Seed describes his...

Music is an integral part of Black American culture. Today, Clint Smith will teach you about rap & hip hop, and the cultural significance of artists including Public Enemy, Wu-Tang Clan, the Notorious B.I.G., Tupac, N.W.A., Queen...

Spray-painted subway cars, tagged bridges, mural-covered walls -- graffiti pops up boldly throughout our cities. And it turns out: it's nothing new. Graffiti has been around for thousands of years. And across that span of time, it's...

Independent public art like graffiti and street art often gets a bad rap, thanks to its legal classification as vandalism. But these art forms have much to offer as a means for people to speak truth to power and take ownership of...

Crop circles decoded, and their secrets revealed. They are sometimes beautiful patterns in the middle of a field. They attract tourists from around the world. They have inspired conspiracy...

Howcast - Learn how to tag in this Howcast video about graffiti art.

Howcast - Learn how to do cartoon-style graffiti in this Howcast video.

Howcast - Learn how to do graffiti symbols with this Howcast video.

Howcast - Learn five graffiti painting tips in this Howcast video.

Howcast - Pick up four tips for beginner graffiti artists from master tagger Paes 164 in this Howcast video.

Howcast - Think you've got what it takes to be an urban graffiti artist? Follow these steps to become da 'hood's next da Vinci.

Howcast -Learn about Paes 164, one of Howcast's graffiti experts, in this video.

Howcast -Learn how to flare for shadowing with graffiti from graffiti artists Paes 164 in this Howcast video.

Howcast -Learn what tagging is from graffiti artist Paes 164 in this Howcast video.

Howcast -Learn what kind of spray paint is best for graffiti from graffiti artist Paes 164 in this Howcast video.

Howcast -Learn how to draw the letter K in graffiti from graffiti artist Paes 164 in this Howcast video.

Howcast -Learn how to draw the letter C in graffiti from graffiti artist Paes 164 in this Howcast video.

In August, 2010, Seni Lewis died in Bethlem Royal Hospital after being restrainted by 11 police officers while experiencing a mental health crisis. Years later, graffiti commemorating Seni appeared on artwork outside the hospital,...