The document discusses the shift from above-the-line (ATL) marketing to below-the-line (BTL) marketing. ATL refers to traditional mass media advertising campaigns, while BTL refers to more targeted direct marketing efforts. The document outlines factors driving the growth of BTL, including changing demographics, consumer sophistication, marketing clutter, and new technologies. It analyzes trends in spending shifting from ATL to BTL channels and discusses various BTL marketing techniques like database marketing, direct mail, email marketing, and promotional activities.