Today all people in the world get influenced with the politics and economics. It can be due to the globalization processes. As a result, we question ourselves about what is going on. One of the entities that has influence today is European Union. In the 21st century union experiences the globalization processes as never before. Thanks to these processes the EU can enjoy the free trade area, customs union as a reaction to the globalization, trade flows, open its market and use its big market resources effectively. There will be the examples through which will be given an attempt to prove that the EU is a big player because of its big market. The book also looks at the perceptions of the outside countries on the EU that is going to help to answer the main question. It will proceed from the assumption that EU is more unified economically than other regions in the world. EU is seen by ‘outsiders’ as a reliable partner. That all allows the EU to be called a big player because of a big market on the global stage. These points touch the minds of everybody today. Anyone who is interested in the contemporary world would find something interesting and useful in this book.