Abstract
The article is devoted to the widely known concept of "segmentation" as an economic category and a scientific method. At the heart of segmentation lies the division of the set of elements into subsets according to given criteria. Even here there is a purely technical, but problem point in explanation of the method to the young businessmen and students of educational institutions, working at their diploma projects and term papers. Considering product market segmentation to find a target market, it is important not only to master the technique of segmentation, but also to understand how to use this method and find a target market that will provide the necessary profit. This article discusses the technique of segmentation without using the apparatus of set theory and provides an overview of the problems that stand in the way of obtaining an effective target market.