In today's world where fewer and fewer barriers and borders limit relationships, interactions between things, people, services, it is no wonder that in a globalized economy like ours, interests, connections, needs of various aspects from people all around the world, happen to coexist and working their way out in certain defined places. There are indeed, some places which more than others, for various reasons ranging from political situation, location, economy rather than taxation, have the ability to attract capital and resources from other countries, giving rise to international financial hubs. One on all in Europe is definitively the Grand Duchy of Luxembourg which with an area of 2,586 km² and a population of only 602,005 people, it is home to more than 130 international banks, Europe's number one investment fund centre, World's top ten largest Private Equity houses, Europe's number one cross-border insurance center, and EU-regulatory framework and EU-wide licensing of financial services. The following chapters, indeed, aim to disclose the main features which bring Luxembourg to be that leading financial center in Europe, the reasons why so many international banks and firms choose the Grand Duchy as their home, the most relevant aspects of the country economy with a focus on the leading sectors. The first two chapters will give a global overview of what the situation is in Luxembourg in order to have a picture of today business and highlighting the strength of the grand duchy economy, bringing on aspects and achievements globally acknowledged. The second chapter however will give more insights on the specific of Luxembourg tax system, detailing the appealing tax regime and even so, the support and protection of the double tax conventions signed with countries worldwide, strengthen the business climate in this country. The analysis will go through the key factors that make Luxembourg so attractive, like favourable tax treaty agreements with 57 countries, a very competitive company taxation at 28.59%, no ...