Promotions refer to the entire set of activities, which communicate the product, brand or service to the user. The idea is to make people aware, attract and induce to buy the product, in preference over others.
There are several types of promotions. Above the line promotions include advertising, press releases, consumer promotions (schemes, discounts, contests), while below the line include trade discounts, freebies, incentive trips, awards and so on. Sales promotion is a part of the overall promotion effort.