A book that describes how I work by Seth Godin who argues that lasting and substantive change can be best effected by a tribe: a group of people connected to each other, to a leader and to an idea. Smart innovators find or assemble a movement of similarly minded individuals and get the tribe excited by a new product, service or message, often via the Internet (consider, for example, the popularity of the Obama campaign, Facebook or Twitter). Tribes, Godin says, can be within or outside a corporation, and almost everyone can be a leader; most are kept from realizing their potential by fear of criticism and fear of being wrong.