Summary In the nineties of the twentieth century Beck made public his attitude to the role of implicit representations and processes in the contemporary cognitive therapy. The aim of this article is familiarizing therapist with this, scattered across various publications, theoretical model. Beckian conceptualization of the unconscious tries to get closer to the current findings of cognitive psychology. The originator of cognitive therapy takes the mind as a continuum between conscious and unconscious (this means that a lot of representations is actually preconscious – the introspection is possible). Unconscious representations and processes have an adaptive character, they evolved to facilitate survival. Cognitive processing takes place on three levels: only the most rapid and simple processes of stimulus appraisal are fully unconscious, then there is the zone of mixed partly conscious processes, and subsequently the fully conscious reflexive level. Implicit schemas are not solely cognitive constructs, but also motivational and affective. In the article we put forward a thesis, that Beck’s model does not take into account unconscious representations opposite to conscious thoughts and beliefs, which can lead to some difficulties in the process of conceptualization. We describe, how to make hypotheses about the unconscious content using the introspective and third-person perspective data. At the end we conclude that cognitive therapists may use the concept of the unconscious, however they have to remember that implicit processes in cognitive theory are simple and not very abstract in nature.