Book excerpt: Organizational change is often insider-led and supported by internal consultants and change agents. Most of what is written about change comes from the perspective of external consultants or from academics researching the activities of those with insider change roles. Changing Organizations from Within is unusual in providing a range of authentic insider accounts. The editors define 'insiders' as employees who lead and support change efforts within their own organizations, and those psychoanalytically aware external consultants - external 'insiders' - who work closely with organizations and use the dynamics of transference and projection in their relationships with clients to illuminate organizational issues. Each chapter is written by an author with experience of different kinds of insider relationships with their client organizations. Some work 'inside' as employees. Some are external consultants whose work involves developing insightful insider perspectives. The book’s editors and several of the authors are graduates, or have been faculty members, of London's Tavistock Institute Advanced Organizational Consultation programme, with experience of running development programmes for consultants and of coaching insiders. Changing Organizations from Within examines the pulls on role and identity that can easily undermine competence and practice. Understanding the system psycho-dynamics present in organizations helps consultants and change agents to make use of an insider perspective without becoming enmeshed in the client organization's regressive and inertial dynamics. The authors provide practical advice to help insiders navigate organizational space, make sense of tricky situations, and work more mindfully to help organizations change.