Ken Blanchard is an international bestselling author and motivational speaker whose books, including The One Minute Manager , The One Minute Entrepreneur (TM) , and Leading at a Higher Level , have sold more than eighteen million copies in thirty languages. He lives in San Diego, California. Claire Diaz-Ortiz (@claire) is an author, speaker and innovation advisor who was an early employee at Twitter. Names one of the 100 Most Creative People in Business by Fast Company and called "The Woman Who Got the Pope on Twitter" by Wired, she holds an MBA and other degrees from Stanford and Oxford and has been featured widely in print and broadcast media. She is the award-winning author of eight books that have been published in more than a dozen countries.