The book is organized into five parts. Part 1 consists of Chapters 1 through 7 and is entitled “Foundations.” It includes information on key terms and definitions, models, origins of OD, and practitioner competencies. Part 2 consists of Chapters 8 through 13 and is entitled “Steps to Guide Planned Change.” This section covers marketing, pre-launch, launch, implementation, evaluation, and separation. Part 3 consists of Chapters 14 through 19 and is entitled “Levels of Organizational Change.” In it we discuss the issue of organization culture and interventions across various levels: individual, team, large systems, and interlevel. Part 4, the final part of the book, addresses some special issues in OD: global OD, values, appreciative inquiry, human systems dynamics, technology, consultant issues, and looking to the future