Major theme: Evaluation of therapeutic outcome. Logical development of the theme: We suggest a way for practitioners and researchers to assess if they are on track in conversing towards client preferred goals. We offer a critique of more conventional approaches to studying therapeutic progress, suggesting how a discursive (i.e. focused on interaction and language use) lens can address these limitations. Through this lens we examine therapeutic progress evident in ‘preference work’, where clients demonstrably indicate, imply, agree and disagree with where the therapeutic conversation is heading. Such ‘preference work’ offers a form of evidence of within-session outcomes in a process of reaching larger client preferred outcomes. Authors’ point of view: We present the results of conversation analysis – a qualitative approach to the study of therapy – to illustrate our discursive perspective on therapy progress and change. Implications: we suggest a way for practitioners to assess if they are on track in conversing towards client preferred goals. We propose that our interactional perspective may significantly contribute to bridging practice and research in therapy.