This document provides an introduction to multi-level marketing (MLM). It defines MLM as moving products or services from manufacturers to consumers through a system of compensation for those causing the products to move. It distinguishes MLM from other marketing methods like retailing, direct sales, mail order, and illegal pyramid schemes. The purpose is to convey what MLM is and is not through examples and illustrate how to effectively explain MLM to others. It positions the content as a training manual for building an MLM organization.