Recognizing values of ecosystem services implies that we are aware of the ecosystem services we receive from the sea, the lake or the forest, and that these benefits are relevant and important for people's well-being and should be taken into account. For example, we want to say how important the fish and shellfish production in the Baltic Sea is, describe the magnitude of recreational activities and timber production in Nordic forests, or the value of the drinking water we receive from Norwegian lakes. As we will see below, these values may be demonstrated in different ways.