It's common for business aspirants like you to not understand what is Network Marketing. Luckily, we are here to get you well versed with the Network Marketing definition. In simple words, Network Marketing uses a network of people to sell a product directly. It is also known as multi-level marketing because the sellers can either sell/distribute the goods directly or hire individuals to do the selling. This hired individuals can also do the same, hence creating another tier or a hierarchy.