Sinus milieus show a representative picture of society: The use of sinus milieus always makes sense when target groups have to be defined. The data are based on scientific research, which is reviewed and recorded every year. The sinus milieus provide assessments of target groups that are close to everyday life (so-called millieus), e.g. the handling of media, preferred brands or the definition of satisfaction and happiness are described. The use of Sinus milieus makes marketing measures more efficient and communication more targeted.