This document provides an overview of channels of distribution from a presentation on sales and advertising management. It defines channels of distribution as the ways that goods and services are distributed from manufacturers to consumers. The document outlines various definitions of channels of distribution from different authors. It discusses the characteristics and elements of channels of distribution, including that they are routes that goods and services flow through composed of intermediaries like wholesalers and retailers. The document also covers the functions of channels of distribution, factors that determine choice of channels, and factors relating to products, companies, markets, middlemen, and the environment that influence channel selection.