The book "Trust Management" is a collection of contributions presented at IFIPTM 2007, a joint conference on data protection, trust management, and security. This conference took place in Moncton, New Brunswick, Canada, and brought together professionals from various disciplines to explore the concept of trust from different perspectives, including business, law, psychology, philosophy, sociology, and information technology. The event marked a significant step in global research on trust management, representing the first annual gathering of the newly established IFIP working group on the subject. The conference attracted contributions from 25 different countries, highlighting the international relevance and interest in the topics discussed. The selected papers provide valuable insights into the challenges and developments in the field of trust management and are significant for both academic and practical applications.