The Cloning Sourcebook addresses all the many scientific, social, and ethical questions raised by the cloning of animals and the possibility of therapeutic and reproductive cloning in humans in a way that is unique in the Cloning literature, by grounding what is effectively an interdisciplinary conversation in solid science. Many lessons can be leamed from the Cloning experience. Most importantly, there needs to be a public conversation about the permissible uses of new and morally murky technologies. Scientists, journalists, ethicists, and policy makers all have roles to play, but cutting-edge science is everybody's business. The Cloning Sourcebook provides the tools required for us to participate in shaping our own futures.