English Summary/英文概要： Providing an integrated approach to crisis communication that spans various disciplines and the entire crisis management process, the fifth edition of Ongoing Crisis Communication uses a three-stage approach to crisis management – pre-crisis, crisis and post-crisis. W. Timothy Coombs draws on first-hand experience in the field, explaining how crisis management can prevent or reduce the threats of a crisis and providing guidelines for how best to act and react in an emergency situation. The fifth edition includes new coverage of social media, social networking sites and terrorist threats and draws upon recent work from management, public relations, organizational psychology, marketing, organizational communication, and computer-mediated communication research.