THEO THEOBALD International business author, currently working with some of the UK's leading public sector bodies on issues of leadership. A former SSC executive, he is renowned for his work on clear communication and is passionate about the benefits of well-being at work. CARY L. COOPER Distinguished Professor of Organizational Psychology and Health at the Lancaster University Management School, UK. He is the author of over 100 books, has written over 400 scholarly articles, and is a frequent contributor to national newspapers, television and radio. He is a Fellow of the British Academy of Management and also of the US-based Academy of Management. In 2001 he was awarded a CBE in the Queen's Birthday Honours List, and he was Founding Chair of the Sunningdale Institute in the National School of Government, UK. He was also the lead scientist to the UK Government Office for Science on their Foresight programme on Mental Capital and Wellbeing, and was appointed a member of the expert group on establishing guidance for the National Institute for Health and Clinical Excellence on stress management in the workplace in 2009.

Professor Cooper is Chair of the Academy of Social Sciences, President of the British Association of Counselling and Psychotherapy, a national Ambassador of the Samaritans and Patron of Anxiety UK. HR Magazine named him the '6th Most Influential Thinker in HR' in 2009. He was awarded the Lord Dearing Lifetime Achievement Award at the Times Higher Education Awards 2010.