Person-centred therapy, a therapeutic modality situated within the humanistic-existential ap-proach, continues to be a key form of psychological intervention eight decades after its foun-dation. The ideas of its main founder, Carl Rogers, have been central in the development of psychotherapy research and practice as we know it today, within the boundaries of the hu-manistic-existential approach and beyond. First, the article introduces the psychopathological and psychotherapeutic theory that underlie the person-centred approach. It then focuses on recent developments within Rogerian theory, as well as on research on person-centred therapy conducted to date. After reviewing some ongoing debates in the field, from a 21st century per-spective, the article concludes by reflecting on the current situation of the approach.