This document explains how to group potential customers 'segments,' which are submarkets of people with similar characteristics, behaviors, socioeconomic status, needs, and desires. Being able to show the market size and its characteristics will help to stimulate public and private investments in the sanitation sector toward the products most likely to contribute to the sustainable economic viability of the sanitation market. This project aimed to support the BHA-funded Resilience Food Security Activities in Niger to develop a comprehensive market development strategy focused on the availability and supply of improved latrines and handwashing-related products in the Maradi and Zinder regions of Niger.