Sellers, buyers and marketers are found in most industries. It can be about working with different products or services and the customers can be anything from private individuals, companies to customers in the public sector. Some jobs do not require long training, but you obviously enjoy communicating with people.
You need to have good knowledge of the products or services you work with and the industry you work in. For some more advanced jobs in sales, purchasing and marketing, higher education is required, knowledge in brand building and good knowledge in economics. You can also work on the customer side with responsibility for purchasing goods and services.
Examples for careers in sales, purchasing, and marketing