Claire Diaz Ortiz

Claire Diaz-Ortiz(born 1982) is an American author, speaker, and employee of Twitter. Hired early on by Twitter co-founder Biz Stone to lead social innovation, she was the first employee to write a book about the platform.

Diaz-Ortiz has been called "The Woman Who Got the Pope on Twitter" and "Twitter's Pontiff Recruitment Chief" for her efforts with the Vatican, and can be seen standing by his side when he sent his first tweet. She has also worked extensively with other world leaders.

Diaz-Ortiz earned a BA and MA from Stanford University.

She holds an MBA from Oxford University, where she was a 2008 Skoll Foundation Scholar at Oxford's Said Business School, the home of the Skoll Centre for Social Entrepreneurship. The Skoll Foundation Scholarship honors five social entrepreneurs per year with a fully funded MBA at Oxford University.

Diaz-Ortiz has been named "One of the 100 Most Creative People in Business" by Fast Company, and is #4 on the Mashable list, "15 Fascinating Twitter Employees." She writes for LinkedIn as a LinkedIn Influencer, one of a group of several hundred global leaders.

Diaz-Ortiz is the author of several books, including Twitter for Good: Change the World One Tweet at a Time; Greater Expectations: Succeed (and Stay Sane) in an On-Demand, All-Access, Always-On Age; and Hope Runs: An American Tourist, A Kenyan Boy, a Journey of Redemption.She is also the author of One Minute Mentoring, which she wrote with Ken Blanchard.

Her book, Twitter for Good,includes a foreword by Biz Stone.

She co-founded Hope Runs, a non-profit organization in Kenyashe started after living in a Kenyan orphanage.

Diaz-Ortiz has a teenage foster son she met while living in an orphanage in Kenya. He is the co-author on the memoir, Hope Runs: An American Tourist, A Kenyan Boy, a Journey of Redemption. She is the daughter of investigative journalist Lance Williams, winner of two George Polk Awards and NYT bestselling author of Game of Shadows.