You can read all about the definitions of the segmentations and groupings available in GWI USA in the below articles. Household Income Segmentation - GWI USAImmigrant Generation Status Segmentation - GWI USAMedia Consumption Segmentation - GWI USAPersonal Interests Segmentation - GWI USA Personas - GWI USAPolitical Inclination Segmentation - GWI USAPrint Media Consumption Segmentation - GWI USASocio Economic Segmentation - GWI USAUSA Regions