In the knowledge-based society, knowledge workers ares the most important resource for organisations, and they are increasingly striving to attract and retain them. One of the tools that organisations are using more and more frequently lately is growing job satisfaction. Studies in recent years have shown that, companies with a high level of job satisfaction tend to have higher profitability and productivity and reduced knowledge worker turnover. All this justifies the growing interest of management of modern organizations in identifying the level of employee satisfaction and methods of increasing it. The aim of the paper is to present to readers with all these concepts, to determine to what extent the concept of job satisfaction is known by knowledge workers and what elements are taken into account to measure the level of job satisfaction and the frequency of their use. We are aware that it is not enough to present only the theory of a complex economic concept, therefore we have carried out and present in the paper the second part of our research addressing these issues.