Harvard Business School professor and author, Teresa Amabile, in this presentation for Google describes her research into what makes people happy, motivated, productive, and creative at work. Using stories from her own life and from the diaries of professionals working on creative projects inside companies, Dr. Amabile explores inner work life — the emotions, perceptions, and motivations that people experience as they react to events in their work day. Her research team discovered that, of all the events that can deeply engage people in their work, the single most important is making progress on meaningful work.