This unique book is a concise introduction to creativity - the art of expanding possibility. Covering such practical methods as multiplying options, brainstorming, lateral thinking, reframing problems, and many others, it offers provocative and effective methods for constructive and expansive kinds of thinking. These methods are illustrated and reinforced through exercises and applications that range from science and technology to the arts; from the small aggravations of everyday life to the largest difficulties in politics, the family, and the future; and from "creative good citizenship" to "creativity to change the world."