Dave Mearns and Brian Thorne explain the theoretical principles of the person-centred approach by relating these principles to actual practice. Drawing on one particular case-study the two counsellors present an extensive exploration of the core conditions of empathy, acceptance and congruence, and provide a step-by-step account of both the counsellor's and the client's experience of being involved in a trusting, caring relationship characterised by power-sharing and mutuality.