Knowledge is supposed to be one of the most important values of our life. When speaking about it we have to be aware of its complexity and integrity. Knowledge is in a way omnipresent in all fields of our every-day living, and this fact makes it a necessary condition for the quality of well-being. In a way we can claim that no single field of our existence can get by without knowledge. In this article the central interest is oriented towards understanding the role of knowledge in the field of policy science and the worth of policy knowledge in and for democratic policy-making. A very special emphasis is in this regard placed on the conditions of policy knowledge in the younger democracies that have evolved from democratisation processes, re...