ATL Marketing, Above-the-Line Marketing - widespread brand-building advertising. It is the kind of marketing that has a very broad reach and is largely untargeted. Think about a national TV campaign, where viewers across the nation see the same advert aired across the various networks.
This kind of marketing is mostly used for building brand awareness and goodwill.
TL Marketing, Below-the-Lne Marketing - highly targeted direct marketing focused on conversions. This is the kind of marketing that targets specific groups of people with focus. For example, a leaflet drop in a specific area, a Google Adwords campaign targeting a certain group or a direct telemarketing campaign targeting specific businesses.
This kind of marketing is best for conversions and direct response.
