Concepts of Marketing. There are 5 different concepts of marketing, each of which vary in the function that they deal with. For example – production concept deals with production and selling concept deals with selling. Each of the concept was developed as per the need of the market. As the market changed, so did the concepts of marketing. And today, we have an opportunity to look at all 5 concepts of marketing and what they represent. 1  Production concept. 2  Product concept.  Selling concept.