When Naheed Nenshi spoke at TEDxCalgary, he was a university professor. Now, he’s the mayor of Calgary. In May of 2010, just a month after giving a TEDx talk, Nenshi launched a successful campaign for mayor—one dubbed the “purple revolution” because of his aim to bring together conservative red and liberal blue. He won the election by a c...

In today's TEDTalk, director Kirby Ferguson outlines a bold vision of creativity -- that it's not about dreaming up a new song, a new piece of art or a new form of technology in a vacuum, but instead about remixing what has come before. In his fast-paced talk, Kirby reveals that many of our most iconic thinkers -- from Henry Ford to Bob Dyla...

TED.com video exists to celebrate great speakers, thinkers, doers -- people with ideas that are passionately held and clearly put. For our speakers, putting their videos online has, in many cases, amplified their work beyond imagination, provoking new connections and directions to their careers and even their lives. As we approached the f...

From tech to self-help via poetry, fiction and graphic novels, here are the books you need to read. What’s the one book you're always thrilled to discover that someone else has read? We posed that question to TED speakers -- and, well, they geeked out, offering us a list of hidden gems that wouldn’t typically crop up on a holiday shopping list....

After his mainstage talk on the opening night of TED, psychologist Steven Pinker sat down with Chris Anderson to dive into his new book, Enlightenment Now. The two examined some criticisms of the book and the thesis behind it, dug into the data, and then threw the floor open for questions, in a session that offered the luxury of time to real...