Abstract. The paper aim is to interpret and define the concept of the „knowledge worker† with reference to the context of post-industrial transformation (new economy, information/ knowledge). In the new economy a certain category of specialists, called knowledge-based specialists is emerging. The usual employee works with his hands and produce goods or services. Instead a knowledge worker works with its head instead its hands and produces ideas, knowledge and information. Terms like knowledge work, knowledge workers, and knowledge intensive firms point to emerging social structures and processes in organisations. This focus allows us to analyse organisations in ways that differ from the notions involving less dynamic forms of organisational configurations.