The document describes "L-O-C-A-L" analytics, a methodology for data mining and customer segmentation. It uses five variables - Last time (L), Often (O), Cash or Credit (C), Analytics (A), and Loyalty (L) - to analyze customer behavior and identify the most loyal customers. By targeting communications only to the most loyal "L-O-C-A-L targets", the document shows merchants can improve marketing return on investment by capturing more buyers with fewer mailings compared to a mass mailing approach.