It is a guide to the use of International Business Terms (Incoterms) used by exporters and importers in business or international trade and / or foreign trade, developed and published by the International Chamber of Commerce in the document are described in a simple and understandable way for any reader: What they are, their origin and use, who creates them, what they are for, types, classification, errors of use, pros and cons, major changes in Incoterms 2020, its importance in foreign trade, finally the criteria for choosing the most appropriate Incoterm and costs of Incoterms.