Sarah Lewis is the managing director and principal psychologist of Appreciating Change. She is an experienced organizational change consultant and facilitator who has been actively involved in helping people and organizations change their behaviour for 25 years. Her clients include local government, central government, not-for-profit organizations and private sector clients, particularly in the manufacturing, financial and educational sectors. A chartered psychologist, an associated fellow of the British Psychological Society, a founder and principal member of the Association of Business Psychologists, and a qualified social worker, Sarah also has a certificate in systemic consultation and is accredited to use psychometric instruments. She is specializes in strengths based, co-creative change process such as appreciative inquiry, open space, world cafe and simureal. She is an expert at facilitating large group events and at working with emergent, psychological, change processes. Sarah has lectured at post-graduate level and is a regular conference presenter worldwide. She is lead author of ‘Appreciative inquiry for Change Management' (Kogan Page 2007), and author of Positive Psychology at Work (Wiley-Blackwell 2011). Her forthcoming publication will be about positive psychology and change (June 2016).