This video from Claritas provides a thorough overview of how the Claritas PRIZM Premier segments are generated and grouped. Keep in mind that the library does not subscribe to the Claritas databases, but you can freely access descriptions of all 68 PRIZM Premier Segments through the website. 

Once you have a general understanding of the PRIZM Premier Segments, you can explore the data through our SimplyAnalytics database (instructions provided in the video below). 

"SimplyAnalytics: Finding Claritas PRIZM Premier Data," recorded October 2020, 7 minutes.